diff --git a/01-rstudio-intro.html b/01-rstudio-intro.html
index 427aefcec..a21c076b2 100644
--- a/01-rstudio-intro.html
+++ b/01-rstudio-intro.html
@@ -360,7 +360,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Introduction to R and RStudio</h1>
-        <p> Last updated on 2023-11-08 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/01-rstudio-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1082,7 +1082,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
     }
     else all.names
 }
-&lt;bytecode: 0x55c3a944aa70&gt;
+&lt;bytecode: 0x55bec8f02a70&gt;
 &lt;environment: namespace:base&gt;</code></pre>
 </div>
 <p>What’s going on here?</p>
@@ -1447,7 +1447,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/01-rstudio-intro.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/01-rstudio-intro.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-11-08",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/02-project-intro.html b/02-project-intro.html
index 6d6eec7a4..d39776e75 100644
--- a/02-project-intro.html
+++ b/02-project-intro.html
@@ -351,7 +351,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Project Management With RStudio</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/02-project-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -602,7 +602,7 @@ <h3 class="code-label">SH<i aria-hidden="true" data-feather="chevron-left"></i><
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
 </h3>
-<pre class="output" tabindex="0"><code>-rw-r--r-- 1 runner docker 80K Sep 10 14:35 data/gapminder_data.csv</code></pre>
+<pre class="output" tabindex="0"><code>-rw-r--r-- 1 runner docker 80K Nov 16 22:05 data/gapminder_data.csv</code></pre>
 </div>
 <p>The file size is 80K.</p>
 <div class="codewrapper sourceCode" id="cb3">
@@ -789,7 +789,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/02-project-intro.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/02-project-intro.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/03-seeking-help.html b/03-seeking-help.html
index 808b398b5..f8e794a03 100644
--- a/03-seeking-help.html
+++ b/03-seeking-help.html
@@ -355,7 +355,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Seeking Help</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/03-seeking-help.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -564,8 +564,8 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 [1] stats     graphics  grDevices utils     datasets  methods   base     
 
 loaded via a namespace (and not attached):
-[1] compiler_4.3.1    tools_4.3.1       rstudioapi_0.15.0 yaml_2.3.7       
-[5] knitr_1.43        xfun_0.40         renv_1.0.2        evaluate_0.21    </code></pre>
+[1] compiler_4.3.1 tools_4.3.1    yaml_2.3.7     knitr_1.45     xfun_0.41     
+[6] renv_1.0.3     evaluate_0.23 </code></pre>
 </div>
 <p>Will print out your current version of R, as well as any packages you
 have loaded. This can be useful for others to help reproduce and debug
@@ -828,7 +828,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/03-seeking-help.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/03-seeking-help.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/04-data-structures-part1.html b/04-data-structures-part1.html
index 1c7dc8e0e..a77bd5aa7 100644
--- a/04-data-structures-part1.html
+++ b/04-data-structures-part1.html
@@ -350,7 +350,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Data Structures</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/04-data-structures-part1.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -2364,7 +2364,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/04-data-structures-part1.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/04-data-structures-part1.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/05-data-structures-part2.html b/05-data-structures-part2.html
index 5a67aff2d..69f91294b 100644
--- a/05-data-structures-part2.html
+++ b/05-data-structures-part2.html
@@ -353,7 +353,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Exploring Data Frames</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/05-data-structures-part2.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -683,7 +683,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -968,7 +968,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>To check the last few lines it’s relatively simple as R already has a
 function for this:</p>
@@ -1029,7 +1029,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>The <code>source</code> function can be used to use a script within a
 script. Assume you would like to load the same type of file over and
@@ -1082,7 +1082,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The object <code>gapminder</code> is a data frame with columns</p>
 <ul><li>
@@ -1177,7 +1177,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/05-data-structures-part2.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/05-data-structures-part2.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/06-data-subsetting.html b/06-data-subsetting.html
index 400fc1f7f..6111e299b 100644
--- a/06-data-subsetting.html
+++ b/06-data-subsetting.html
@@ -358,7 +358,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Subsetting Data</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/06-data-subsetting.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1959,7 +1959,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/06-data-subsetting.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/06-data-subsetting.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/07-control-flow.html b/07-control-flow.html
index f938f9c3e..3a7149e3e 100644
--- a/07-control-flow.html
+++ b/07-control-flow.html
@@ -349,7 +349,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Control Flow</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/07-control-flow.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -521,7 +521,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>We will first see a solution to Challenge 1 which does not use the
 <code>any()</code> function. We first obtain a logical vector describing
@@ -867,7 +867,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>We can check whether the two vectors are identical using the
 <code>all()</code> function:</p>
@@ -953,7 +953,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p><strong>Step 1</strong>: We want to make sure we can extract all the
 unique values of the continent vector</p>
@@ -1034,7 +1034,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>We modify our solution to Challenge 3 by now adding two thresholds,
 <code>lowerThreshold</code> and <code>upperThreshold</code> and
@@ -1085,7 +1085,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution for Challenge 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>We will use the <code>grep()</code> command that was introduced in
 the <a href="https://swcarpentry.github.io/shell-novice/07-find.html" class="external-link">Unix
@@ -1215,7 +1215,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/07-control-flow.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/07-control-flow.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/08-plot-ggplot2.html b/08-plot-ggplot2.html
index f221c3617..52447821e 100644
--- a/08-plot-ggplot2.html
+++ b/08-plot-ggplot2.html
@@ -353,7 +353,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Creating Publication-Quality Graphics with ggplot2</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/08-plot-ggplot2.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1073,7 +1073,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/08-plot-ggplot2.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/08-plot-ggplot2.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/09-vectorization.html b/09-vectorization.html
index 5d19f0180..dc9ea4fbd 100644
--- a/09-vectorization.html
+++ b/09-vectorization.html
@@ -342,7 +342,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Vectorization</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/09-vectorization.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -468,7 +468,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Let’s try this on the <code>pop</code> column of the
 <code>gapminder</code> dataset.</p>
@@ -520,7 +520,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Refresh your plotting skills by plotting population in millions
 against year.</p>
@@ -699,7 +699,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Given the following matrix:</p>
 <div class="codewrapper sourceCode" id="cb28">
@@ -778,7 +778,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>We’re interested in looking at the sum of the following sequence of
 fractions:</p>
@@ -988,7 +988,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/09-vectorization.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/09-vectorization.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/10-functions.html b/10-functions.html
index 66b797bfa..d4fa16de8 100644
--- a/10-functions.html
+++ b/10-functions.html
@@ -352,7 +352,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Functions Explained</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/10-functions.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1189,7 +1189,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/10-functions.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/10-functions.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/11-writing-data.html b/11-writing-data.html
index 484fda237..83ed5265b 100644
--- a/11-writing-data.html
+++ b/11-writing-data.html
@@ -350,7 +350,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Writing Data</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/11-writing-data.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -655,7 +655,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/11-writing-data.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/11-writing-data.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/12-plyr.html b/12-plyr.html
index 26feeeaeb..5bd38bd54 100644
--- a/12-plyr.html
+++ b/12-plyr.html
@@ -349,7 +349,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Splitting and Combining Data Frames with plyr</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/12-plyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -979,7 +979,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/12-plyr.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/12-plyr.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/13-dplyr.html b/13-dplyr.html
index 8c1a6701f..e5da2890e 100644
--- a/13-dplyr.html
+++ b/13-dplyr.html
@@ -358,7 +358,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Data Frame Manipulation with dplyr</h1>
-        <p> Last updated on 2023-11-15 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/13-dplyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1207,7 +1207,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/13-dplyr.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/13-dplyr.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-11-15",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/14-tidyr.html b/14-tidyr.html
index a73546687..eb2c52901 100644
--- a/14-tidyr.html
+++ b/14-tidyr.html
@@ -352,7 +352,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Data Frame Manipulation with tidyr</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/14-tidyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -466,7 +466,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The original gapminder data.frame is in an intermediate format. It is
 not purely long since it had multiple observation variables
@@ -660,7 +660,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -958,7 +958,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1128,7 +1128,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/14-tidyr.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/14-tidyr.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/15-knitr-markdown.html b/15-knitr-markdown.html
index ec835ed1d..871fa46ea 100644
--- a/15-knitr-markdown.html
+++ b/15-knitr-markdown.html
@@ -360,7 +360,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Producing Reports With knitr</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/15-knitr-markdown.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -542,7 +542,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>In RStudio, select File &gt; New file &gt; R Markdown…</p>
 <p>Delete the placeholder text and add the following:</p>
@@ -621,7 +621,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre>
 ```{r load-ggplot2}
@@ -709,7 +709,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre>
 ```{r echo = FALSE, fig.width = 3}
@@ -759,7 +759,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here’s some inline code to determine that 2 + 2 = <code>4</code>.</p>
 </div>
@@ -907,7 +907,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/15-knitr-markdown.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/15-knitr-markdown.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/16-wrap-up.html b/16-wrap-up.html
index 4728710d1..d4c71903b 100644
--- a/16-wrap-up.html
+++ b/16-wrap-up.html
@@ -356,7 +356,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Writing Good Software</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/16-wrap-up.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -555,7 +555,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/16-wrap-up.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/16-wrap-up.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index d45e139a2..9f627c362 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -338,7 +338,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Contributor Code of Conduct</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/CODE_OF_CONDUCT.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -418,7 +418,7 @@ <h1>Contributor Code of Conduct</h1>
   "url": "https://swcarpentry.github.io/r-novice-gapminder/CODE_OF_CONDUCT.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/CODE_OF_CONDUCT.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/LICENSE.html b/LICENSE.html
index 6e7c3c876..202d63078 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -338,7 +338,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Licenses</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/LICENSE.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -469,7 +469,7 @@ <h1>Licenses</h1>
   "url": "https://swcarpentry.github.io/r-novice-gapminder/LICENSE.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/LICENSE.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/aio.html b/aio.html
index 24b6dedaf..8faf3e3f9 100644
--- a/aio.html
+++ b/aio.html
@@ -421,7 +421,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         
 <section id="aio-01-rstudio-intro"><p>Content from <a href="01-rstudio-intro.html">Introduction to R and RStudio</a></p>
 <hr>
-<p> Last updated on 2023-11-08 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/01-rstudio-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -1169,7 +1169,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
     }
     else all.names
 }
-&lt;bytecode: 0x55c3a944aa70&gt;
+&lt;bytecode: 0x55bec8f02a70&gt;
 &lt;environment: namespace:base&gt;</code></pre>
 </div>
 <p>What’s going on here?</p>
@@ -1482,7 +1482,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-02-project-intro"><p>Content from <a href="02-project-intro.html">Project Management With RStudio</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/02-project-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -1752,7 +1752,7 @@ <h3 class="code-label">SH<i aria-hidden="true" data-feather="chevron-left"></i><
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
 </h3>
-<pre class="output" tabindex="0"><code>-rw-r--r-- 1 runner docker 80K Sep 10 14:35 data/gapminder_data.csv</code></pre>
+<pre class="output" tabindex="0"><code>-rw-r--r-- 1 runner docker 80K Nov 16 22:05 data/gapminder_data.csv</code></pre>
 </div>
 <p>The file size is 80K.</p>
 <div class="codewrapper sourceCode" id="cb3">
@@ -1890,7 +1890,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-03-seeking-help"><p>Content from <a href="03-seeking-help.html">Seeking Help</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/03-seeking-help.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -2105,8 +2105,8 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 [1] stats     graphics  grDevices utils     datasets  methods   base     
 
 loaded via a namespace (and not attached):
-[1] compiler_4.3.1    tools_4.3.1       rstudioapi_0.15.0 yaml_2.3.7       
-[5] knitr_1.43        xfun_0.40         renv_1.0.2        evaluate_0.21    </code></pre>
+[1] compiler_4.3.1 tools_4.3.1    yaml_2.3.7     knitr_1.45     xfun_0.41     
+[6] renv_1.0.3     evaluate_0.23 </code></pre>
 </div>
 <p>Will print out your current version of R, as well as any packages you
 have loaded. This can be useful for others to help reproduce and debug
@@ -2317,7 +2317,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-04-data-structures-part1"><p>Content from <a href="04-data-structures-part1.html">Data Structures</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/04-data-structures-part1.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -4307,7 +4307,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-05-data-structures-part2"><p>Content from <a href="05-data-structures-part2.html">Exploring Data Frames</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/05-data-structures-part2.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -4641,7 +4641,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4933,7 +4933,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>To check the last few lines it’s relatively simple as R already has a
 function for this:</p>
@@ -4995,7 +4995,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>The <code>source</code> function can be used to use a script within a
 script. Assume you would like to load the same type of file over and
@@ -5048,7 +5048,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The object <code>gapminder</code> is a data frame with columns</p>
 <ul>
@@ -5090,7 +5090,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-06-data-subsetting"><p>Content from <a href="06-data-subsetting.html">Subsetting Data</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/06-data-subsetting.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -6680,7 +6680,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-07-control-flow"><p>Content from <a href="07-control-flow.html">Control Flow</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/07-control-flow.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -6850,7 +6850,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>We will first see a solution to Challenge 1 which does not use the
 <code>any()</code> function. We first obtain a logical vector describing
@@ -7197,7 +7197,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>We can check whether the two vectors are identical using the
 <code>all()</code> function:</p>
@@ -7283,7 +7283,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p><strong>Step 1</strong>: We want to make sure we can extract all the
 unique values of the continent vector</p>
@@ -7366,7 +7366,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>We modify our solution to Challenge 3 by now adding two thresholds,
 <code>lowerThreshold</code> and <code>upperThreshold</code> and
@@ -7417,7 +7417,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution for Challenge 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>We will use the <code>grep()</code> command that was introduced in
 the <a href="https://swcarpentry.github.io/shell-novice/07-find.html" class="external-link">Unix
@@ -7492,7 +7492,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-08-plot-ggplot2"><p>Content from <a href="08-plot-ggplot2.html">Creating Publication-Quality Graphics with ggplot2</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/08-plot-ggplot2.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -8170,7 +8170,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-09-vectorization"><p>Content from <a href="09-vectorization.html">Vectorization</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/09-vectorization.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -8294,7 +8294,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Let’s try this on the <code>pop</code> column of the
 <code>gapminder</code> dataset.</p>
@@ -8346,7 +8346,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Refresh your plotting skills by plotting population in millions
 against year.</p>
@@ -8528,7 +8528,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
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 <p>Given the following matrix:</p>
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   Challenge 4
   </h4>
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-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>We’re interested in looking at the sum of the following sequence of
 fractions:</p>
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 </div></section><section id="aio-10-functions"><p>Content from <a href="10-functions.html">Functions Explained</a></p>
 <hr>
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         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/10-functions.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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 <hr>
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         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/11-writing-data.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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 <hr>
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         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/12-plyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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 <hr>
-<p> Last updated on 2023-11-15 | 
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         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/13-dplyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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 <hr>
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         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/14-tidyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The original gapminder data.frame is in an intermediate format. It is
 not purely long since it had multiple observation variables
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   Solution to Challenge 2
   </h4>
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-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
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 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
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   Solution to Challenge 3
   </h4>
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-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
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 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
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 </section></section><section id="aio-15-knitr-markdown"><p>Content from <a href="15-knitr-markdown.html">Producing Reports With knitr</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/15-knitr-markdown.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -12111,7 +12111,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>In RStudio, select File &gt; New file &gt; R Markdown…</p>
 <p>Delete the placeholder text and add the following:</p>
@@ -12194,7 +12194,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre>
 ```{r load-ggplot2}
@@ -12286,7 +12286,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre>
 ```{r echo = FALSE, fig.width = 3}
@@ -12337,7 +12337,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here’s some inline code to determine that 2 + 2 = <code>4</code>.</p>
 </div>
@@ -12434,7 +12434,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-16-wrap-up"><p>Content from <a href="16-wrap-up.html">Writing Good Software</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/16-wrap-up.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
diff --git a/discuss.html b/discuss.html
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+++ b/discuss.html
@@ -338,7 +338,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Discussion</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/learners/discuss.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -412,7 +412,7 @@ <h1>Discussion</h1>
   "url": "https://swcarpentry.github.io/r-novice-gapminder/discuss.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/discuss.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/01-rstudio-intro.html b/instructor/01-rstudio-intro.html
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@@ -359,7 +359,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Introduction to R and RStudio</h1>
-        <p> Last updated on 2023-11-08 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/01-rstudio-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1083,7 +1083,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
     }
     else all.names
 }
-&lt;bytecode: 0x55c3a944aa70&gt;
+&lt;bytecode: 0x55bec8f02a70&gt;
 &lt;environment: namespace:base&gt;</code></pre>
 </div>
 <p>What’s going on here?</p>
@@ -1448,7 +1448,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/01-rstudio-intro.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/01-rstudio-intro.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-11-08",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/02-project-intro.html b/instructor/02-project-intro.html
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       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Project Management With RStudio</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/02-project-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -603,7 +603,7 @@ <h3 class="code-label">SH<i aria-hidden="true" data-feather="chevron-left"></i><
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 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
 </h3>
-<pre class="output" tabindex="0"><code>-rw-r--r-- 1 runner docker 80K Sep 10 14:35 data/gapminder_data.csv</code></pre>
+<pre class="output" tabindex="0"><code>-rw-r--r-- 1 runner docker 80K Nov 16 22:05 data/gapminder_data.csv</code></pre>
 </div>
 <p>The file size is 80K.</p>
 <div class="codewrapper sourceCode" id="cb3">
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   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/02-project-intro.html",
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   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
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diff --git a/instructor/03-seeking-help.html b/instructor/03-seeking-help.html
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       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Seeking Help</h1>
-        <p> Last updated on 2023-09-10 | 
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         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/03-seeking-help.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -565,8 +565,8 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 [1] stats     graphics  grDevices utils     datasets  methods   base     
 
 loaded via a namespace (and not attached):
-[1] compiler_4.3.1    tools_4.3.1       rstudioapi_0.15.0 yaml_2.3.7       
-[5] knitr_1.43        xfun_0.40         renv_1.0.2        evaluate_0.21    </code></pre>
+[1] compiler_4.3.1 tools_4.3.1    yaml_2.3.7     knitr_1.45     xfun_0.41     
+[6] renv_1.0.3     evaluate_0.23 </code></pre>
 </div>
 <p>Will print out your current version of R, as well as any packages you
 have loaded. This can be useful for others to help reproduce and debug
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   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/03-seeking-help.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/03-seeking-help.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/04-data-structures-part1.html b/instructor/04-data-structures-part1.html
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       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Data Structures</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/04-data-structures-part1.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -2365,7 +2365,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/04-data-structures-part1.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
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diff --git a/instructor/05-data-structures-part2.html b/instructor/05-data-structures-part2.html
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         <h1>Exploring Data Frames</h1>
-        <p> Last updated on 2023-09-10 | 
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         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/05-data-structures-part2.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
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   Solution to Challenge 1
   </h4>
 </button>
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   Solution to Challenge 2
   </h4>
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-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>To check the last few lines it’s relatively simple as R already has a
 function for this:</p>
@@ -1030,7 +1030,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>The <code>source</code> function can be used to use a script within a
 script. Assume you would like to load the same type of file over and
@@ -1083,7 +1083,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The object <code>gapminder</code> is a data frame with columns</p>
 <ul><li>
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   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/05-data-structures-part2.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
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diff --git a/instructor/06-data-subsetting.html b/instructor/06-data-subsetting.html
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       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Subsetting Data</h1>
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   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/06-data-subsetting.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/06-data-subsetting.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
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diff --git a/instructor/07-control-flow.html b/instructor/07-control-flow.html
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         <h1>Control Flow</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/07-control-flow.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -522,7 +522,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
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+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>We will first see a solution to Challenge 1 which does not use the
 <code>any()</code> function. We first obtain a logical vector describing
@@ -868,7 +868,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>We can check whether the two vectors are identical using the
 <code>all()</code> function:</p>
@@ -954,7 +954,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p><strong>Step 1</strong>: We want to make sure we can extract all the
 unique values of the continent vector</p>
@@ -1035,7 +1035,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>We modify our solution to Challenge 3 by now adding two thresholds,
 <code>lowerThreshold</code> and <code>upperThreshold</code> and
@@ -1086,7 +1086,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution for Challenge 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>We will use the <code>grep()</code> command that was introduced in
 the <a href="https://swcarpentry.github.io/shell-novice/07-find.html" class="external-link">Unix
@@ -1216,7 +1216,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/07-control-flow.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/07-control-flow.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/08-plot-ggplot2.html b/instructor/08-plot-ggplot2.html
index 12b398004..02b592ca0 100644
--- a/instructor/08-plot-ggplot2.html
+++ b/instructor/08-plot-ggplot2.html
@@ -352,7 +352,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Creating Publication-Quality Graphics with ggplot2</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/08-plot-ggplot2.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1074,7 +1074,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/08-plot-ggplot2.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/08-plot-ggplot2.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/09-vectorization.html b/instructor/09-vectorization.html
index 8e623ee95..f4737c273 100644
--- a/instructor/09-vectorization.html
+++ b/instructor/09-vectorization.html
@@ -341,7 +341,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Vectorization</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/09-vectorization.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -469,7 +469,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Let’s try this on the <code>pop</code> column of the
 <code>gapminder</code> dataset.</p>
@@ -521,7 +521,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Refresh your plotting skills by plotting population in millions
 against year.</p>
@@ -700,7 +700,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Given the following matrix:</p>
 <div class="codewrapper sourceCode" id="cb28">
@@ -779,7 +779,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>We’re interested in looking at the sum of the following sequence of
 fractions:</p>
@@ -989,7 +989,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/09-vectorization.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/09-vectorization.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/10-functions.html b/instructor/10-functions.html
index ef3c9cdd4..ee89c10f9 100644
--- a/instructor/10-functions.html
+++ b/instructor/10-functions.html
@@ -351,7 +351,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Functions Explained</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/10-functions.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1190,7 +1190,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/10-functions.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/10-functions.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/11-writing-data.html b/instructor/11-writing-data.html
index b39cb87e7..bdc0a6b5d 100644
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+++ b/instructor/11-writing-data.html
@@ -349,7 +349,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Writing Data</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/11-writing-data.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -656,7 +656,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/11-writing-data.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/11-writing-data.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/12-plyr.html b/instructor/12-plyr.html
index 144a466c9..bb5bcb8f5 100644
--- a/instructor/12-plyr.html
+++ b/instructor/12-plyr.html
@@ -348,7 +348,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Splitting and Combining Data Frames with plyr</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/12-plyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -980,7 +980,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/12-plyr.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/12-plyr.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/13-dplyr.html b/instructor/13-dplyr.html
index c879964fd..09314ab7c 100644
--- a/instructor/13-dplyr.html
+++ b/instructor/13-dplyr.html
@@ -357,7 +357,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Data Frame Manipulation with dplyr</h1>
-        <p> Last updated on 2023-11-15 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/13-dplyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -1208,7 +1208,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/13-dplyr.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/13-dplyr.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-11-15",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/14-tidyr.html b/instructor/14-tidyr.html
index c39684f7e..fe96b8614 100644
--- a/instructor/14-tidyr.html
+++ b/instructor/14-tidyr.html
@@ -351,7 +351,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Data Frame Manipulation with tidyr</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/14-tidyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -467,7 +467,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The original gapminder data.frame is in an intermediate format. It is
 not purely long since it had multiple observation variables
@@ -661,7 +661,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -959,7 +959,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1129,7 +1129,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/14-tidyr.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/14-tidyr.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/15-knitr-markdown.html b/instructor/15-knitr-markdown.html
index edffe09e1..305756903 100644
--- a/instructor/15-knitr-markdown.html
+++ b/instructor/15-knitr-markdown.html
@@ -359,7 +359,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Producing Reports With knitr</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/15-knitr-markdown.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -543,7 +543,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>In RStudio, select File &gt; New file &gt; R Markdown…</p>
 <p>Delete the placeholder text and add the following:</p>
@@ -622,7 +622,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre>
 ```{r load-ggplot2}
@@ -710,7 +710,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre>
 ```{r echo = FALSE, fig.width = 3}
@@ -760,7 +760,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here’s some inline code to determine that 2 + 2 = <code>4</code>.</p>
 </div>
@@ -908,7 +908,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/15-knitr-markdown.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/15-knitr-markdown.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/16-wrap-up.html b/instructor/16-wrap-up.html
index 0e3a6a489..ec83ba028 100644
--- a/instructor/16-wrap-up.html
+++ b/instructor/16-wrap-up.html
@@ -355,7 +355,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Writing Good Software</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/16-wrap-up.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -556,7 +556,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/16-wrap-up.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/16-wrap-up.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 3ad66f107..b6059dea3 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -337,7 +337,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Contributor Code of Conduct</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/CODE_OF_CONDUCT.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -419,7 +419,7 @@ <h1>Contributor Code of Conduct</h1>
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/CODE_OF_CONDUCT.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 30ddf3722..851ee3547 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -337,7 +337,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Licenses</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/LICENSE.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -470,7 +470,7 @@ <h1>Licenses</h1>
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/LICENSE.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/LICENSE.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/aio.html b/instructor/aio.html
index e24fa8f55..24d14692a 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -417,7 +417,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         
 <section id="aio-01-rstudio-intro"><p>Content from <a href="01-rstudio-intro.html">Introduction to R and RStudio</a></p>
 <hr>
-<p> Last updated on 2023-11-08 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/01-rstudio-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 55 minutes </p>
@@ -1166,7 +1166,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
     }
     else all.names
 }
-&lt;bytecode: 0x55c3a944aa70&gt;
+&lt;bytecode: 0x55bec8f02a70&gt;
 &lt;environment: namespace:base&gt;</code></pre>
 </div>
 <p>What’s going on here?</p>
@@ -1479,7 +1479,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-02-project-intro"><p>Content from <a href="02-project-intro.html">Project Management With RStudio</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/02-project-intro.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 30 minutes </p>
@@ -1750,7 +1750,7 @@ <h3 class="code-label">SH<i aria-hidden="true" data-feather="chevron-left"></i><
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
 </h3>
-<pre class="output" tabindex="0"><code>-rw-r--r-- 1 runner docker 80K Sep 10 14:35 data/gapminder_data.csv</code></pre>
+<pre class="output" tabindex="0"><code>-rw-r--r-- 1 runner docker 80K Nov 16 22:05 data/gapminder_data.csv</code></pre>
 </div>
 <p>The file size is 80K.</p>
 <div class="codewrapper sourceCode" id="cb3">
@@ -1888,7 +1888,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-03-seeking-help"><p>Content from <a href="03-seeking-help.html">Seeking Help</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/03-seeking-help.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 20 minutes </p>
@@ -2104,8 +2104,8 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 [1] stats     graphics  grDevices utils     datasets  methods   base     
 
 loaded via a namespace (and not attached):
-[1] compiler_4.3.1    tools_4.3.1       rstudioapi_0.15.0 yaml_2.3.7       
-[5] knitr_1.43        xfun_0.40         renv_1.0.2        evaluate_0.21    </code></pre>
+[1] compiler_4.3.1 tools_4.3.1    yaml_2.3.7     knitr_1.45     xfun_0.41     
+[6] renv_1.0.3     evaluate_0.23 </code></pre>
 </div>
 <p>Will print out your current version of R, as well as any packages you
 have loaded. This can be useful for others to help reproduce and debug
@@ -2316,7 +2316,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-04-data-structures-part1"><p>Content from <a href="04-data-structures-part1.html">Data Structures</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/04-data-structures-part1.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 55 minutes </p>
@@ -4307,7 +4307,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-05-data-structures-part2"><p>Content from <a href="05-data-structures-part2.html">Exploring Data Frames</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/05-data-structures-part2.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 30 minutes </p>
@@ -4642,7 +4642,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4934,7 +4934,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>To check the last few lines it’s relatively simple as R already has a
 function for this:</p>
@@ -4996,7 +4996,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>The <code>source</code> function can be used to use a script within a
 script. Assume you would like to load the same type of file over and
@@ -5049,7 +5049,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The object <code>gapminder</code> is a data frame with columns</p>
 <ul>
@@ -5091,7 +5091,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-06-data-subsetting"><p>Content from <a href="06-data-subsetting.html">Subsetting Data</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/06-data-subsetting.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 50 minutes </p>
@@ -6682,7 +6682,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-07-control-flow"><p>Content from <a href="07-control-flow.html">Control Flow</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/07-control-flow.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 65 minutes </p>
@@ -6853,7 +6853,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>We will first see a solution to Challenge 1 which does not use the
 <code>any()</code> function. We first obtain a logical vector describing
@@ -7200,7 +7200,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>We can check whether the two vectors are identical using the
 <code>all()</code> function:</p>
@@ -7286,7 +7286,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p><strong>Step 1</strong>: We want to make sure we can extract all the
 unique values of the continent vector</p>
@@ -7369,7 +7369,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>We modify our solution to Challenge 3 by now adding two thresholds,
 <code>lowerThreshold</code> and <code>upperThreshold</code> and
@@ -7420,7 +7420,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution for Challenge 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>We will use the <code>grep()</code> command that was introduced in
 the <a href="https://swcarpentry.github.io/shell-novice/07-find.html" class="external-link">Unix
@@ -7495,7 +7495,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-08-plot-ggplot2"><p>Content from <a href="08-plot-ggplot2.html">Creating Publication-Quality Graphics with ggplot2</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/08-plot-ggplot2.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 80 minutes </p>
@@ -8174,7 +8174,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-09-vectorization"><p>Content from <a href="09-vectorization.html">Vectorization</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/09-vectorization.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 25 minutes </p>
@@ -8299,7 +8299,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Let’s try this on the <code>pop</code> column of the
 <code>gapminder</code> dataset.</p>
@@ -8351,7 +8351,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Refresh your plotting skills by plotting population in millions
 against year.</p>
@@ -8533,7 +8533,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Given the following matrix:</p>
 <div class="codewrapper sourceCode" id="cb28">
@@ -8618,7 +8618,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>We’re interested in looking at the sum of the following sequence of
 fractions:</p>
@@ -8769,7 +8769,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </div></section><section id="aio-10-functions"><p>Content from <a href="10-functions.html">Functions Explained</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/10-functions.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 60 minutes </p>
@@ -9561,7 +9561,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-11-writing-data"><p>Content from <a href="11-writing-data.html">Writing Data</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/11-writing-data.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 20 minutes </p>
@@ -9812,7 +9812,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-12-plyr"><p>Content from <a href="12-plyr.html">Splitting and Combining Data Frames with plyr</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/12-plyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 60 minutes </p>
@@ -10397,7 +10397,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-13-dplyr"><p>Content from <a href="13-dplyr.html">Data Frame Manipulation with dplyr</a></p>
 <hr>
-<p> Last updated on 2023-11-15 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/13-dplyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 55 minutes </p>
@@ -11204,7 +11204,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-14-tidyr"><p>Content from <a href="14-tidyr.html">Data Frame Manipulation with tidyr</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/14-tidyr.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 45 minutes </p>
@@ -11320,7 +11320,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The original gapminder data.frame is in an intermediate format. It is
 not purely long since it had multiple observation variables
@@ -11515,7 +11515,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -11814,7 +11814,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -11932,7 +11932,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-15-knitr-markdown"><p>Content from <a href="15-knitr-markdown.html">Producing Reports With knitr</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/15-knitr-markdown.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 75 minutes </p>
@@ -12122,7 +12122,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>In RStudio, select File &gt; New file &gt; R Markdown…</p>
 <p>Delete the placeholder text and add the following:</p>
@@ -12205,7 +12205,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre>
 ```{r load-ggplot2}
@@ -12297,7 +12297,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre>
 ```{r echo = FALSE, fig.width = 3}
@@ -12348,7 +12348,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here’s some inline code to determine that 2 + 2 = <code>4</code>.</p>
 </div>
@@ -12445,7 +12445,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
 </div>
 </section></section><section id="aio-16-wrap-up"><p>Content from <a href="16-wrap-up.html">Writing Good Software</a></p>
 <hr>
-<p> Last updated on 2023-09-10 | 
+<p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/episodes/16-wrap-up.Rmd" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time <i aria-hidden="true" data-feather="clock"></i> 15 minutes </p>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 9eef11025..1a2746319 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -337,7 +337,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Discussion</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/learners/discuss.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -413,7 +413,7 @@ <h1>Discussion</h1>
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/discuss.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/discuss.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }
 
diff --git a/instructor/reference.html b/instructor/reference.html
index cf438ff55..1eac9ca0a 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -337,7 +337,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Reference</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/learners/reference.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -931,7 +931,7 @@ <h1>Reference</h1>
   "url": "https://swcarpentry.github.io/r-novice-gapminder/instructor/reference.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/instructor/reference.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
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   "datePublished": "2023-11-16"
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index 5370c5037..34c2902f4 100644
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diff --git a/pkgdown.yml b/pkgdown.yml
index 2ca0a684f..9eff1cf50 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 2.19.2
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
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+last_built: 2023-11-16T22:06Z
 
diff --git a/reference.html b/reference.html
index 0ece84ff6..b75c4d172 100644
--- a/reference.html
+++ b/reference.html
@@ -338,7 +338,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Reference</h1>
-        <p> Last updated on 2023-09-10 | 
+        <p> Last updated on 2023-11-16 | 
         
         <a href="https://github.com/swcarpentry/r-novice-gapminder/edit/main/learners/reference.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -930,7 +930,7 @@ <h1>Reference</h1>
   "url": "https://swcarpentry.github.io/r-novice-gapminder/reference.html",
   "identifier": "https://swcarpentry.github.io/r-novice-gapminder/reference.html",
   "dateCreated": "2015-04-18",
-  "dateModified": "2023-09-10",
+  "dateModified": "2023-11-16",
   "datePublished": "2023-11-16"
 }