analyze_json.py return ZeroDivisionError in analyzing itg

[methylpentane]

Hello, chrisdonahue,

I downloaded itg & fraxtil dataset and I suceeded to generate json files but,
when I analyze itg dataset by running ./smd_4_analyze.sh, the python script stop by ZeroDivisionError in line 83. (it has no error in analyzing fraxtil dataset)
I wonder where does the error come from, or is it correct result?

[chrisdonahue]

Not sure. Try downloading the exact ITG zips that we used in 2017 from here: https://drive.google.com/drive/folders/1lAQMDtXRk5nMo6acAU8p5G_nhmuMY0XR?usp=sharing

[chrisdonahue]

If that doesn't work I can dig a little deeper

[methylpentane]

sorry, it doesn't work, same result.
(diff command return nothing when compare one I downloaded by myself and your drive's.)
I don't have enough coding skill but I'll try to understand situation of the error, thanks

[methylpentane]

I found cause of zero division of analyze_json.py.

some songs of the ITG/ITG2 don't have EXPERT(Challenge) chart,
and coarse_to_beats is defined as defaultdict(set),
Therefore, len(coarse_to_beats['Challenge']) return 0 without exception at line 81,
but stop at line 83 by zero division.