list index out of range when comparing more than 2 dataframes

[alikleit]

Current Behaviour

The following example is from the docs (modified a bit for testing against my files):

from ydata_profiling import ProfileReport, compare

train_df = pd.read_excel("datasets/Train.xlsx")
train_report = ProfileReport(train_df, title="Train")

test_df = pd.read_excel("datasets/Test.xlsx")
test_report = ProfileReport(test_df, title="Test")

validation_df = pd.read_excel("datasets/Test.xlsx")
validation_report = ProfileReport(validation_df, title="Valid")


comparison_report = compare([train_report, validation_report, test_report])

# Obtain merged statistics
statistics = comparison_report.get_description()

# Save report to file
comparison_report.to_notebook_iframe()
# comparison_report.to_file("reports/comparison.html")

Expected Behaviour

To Generate a comparison report

Data Description

Files:
Test.xlsx
Train.xlsx

Code that reproduces the bug

Tried Both:

comparison_report.to_notebook_iframe()
# comparison_report.to_file("reports/comparison.html")


Throws:
```py
IndexError                                Traceback (most recent call last)
Cell In[42], line 19
     16 statistics = comparison_report.get_description()
     18 # Save report to file
---> 19 comparison_report.to_notebook_iframe()
     20 # comparison_report.to_file("reports/comparison.html")

.venv/lib/python3.11/site-packages/ydata_profiling/profile_report.py:526, in ProfileReport.to_notebook_iframe(self)
    524 with warnings.catch_warnings():
    525     warnings.simplefilter("ignore")
--> 526     display(get_notebook_iframe(self.config, self))

.venv/lib/python3.11/site-packages/ydata_profiling/report/presentation/flavours/widget/notebook.py:75, in get_notebook_iframe(config, profile)
     73     output = get_notebook_iframe_src(config, profile)
     74 elif attribute == IframeAttribute.srcdoc:
---> 75     output = get_notebook_iframe_srcdoc(config, profile)
     76 else:
     77     raise ValueError(
     78         f'Iframe Attribute can be "src" or "srcdoc" (current: {attribute}).'
     79     )

.venv/lib/python3.11/site-packages/ydata_profiling/report/presentation/flavours/widget/notebook.py:29, in get_notebook_iframe_srcdoc(config, profile)
     27 width = config.notebook.iframe.width
     28 height = config.notebook.iframe.height
...
     89             alpha=0.6,
     90         )
     92     if date:



IndexError: list index out of range

pandas-profiling version --> (ydata-profiling version)

v4.10.0

Dependencies

python = "~3.11"
blackcellmagic = "^0.0.3"
ruff = "^0.6.1"
ydata-profiling = "^4.10.0"
numpy = "2.0.1"
openpyxl = "^3.1.5"

OS

WSL Ubuntu

Checklist

• There is not yet another bug report for this issue in the issue tracker
• The problem is reproducible from this bug report. This guide can help to craft a minimal bug report.
• The issue has not been resolved by the entries listed under Common Issues.

[fabclmnt]

Hi @alikleit ,

as mentioned in the docs Note (end of the page) , the compare functionality only ensure the report comparison for 2 datasets.

Meaning that only the statistics are calculated whenever 3 datasets are provided. The html functionality might work, but not guaranteed. Iframe won't work.

My suggestion is to either leverage the statistics calculated or change the code to compare 2 datasets at a time.

Any other questions let us know.