categorical column with float and np.nan throws error when being converted to strings only with lgbm
maybe try explicitly casting to strings any column that should be categorical?
Not sure if it's related to the above error, but I'm getting the following error while running LightGBM on the get_boston_dataset() test set.
TypeError: 'NoneType' object is not iterable as well as TypeError: Unknown type(ndarray)
@samuelcwl : bah, that was a really, really annoying error. lightgbm is generally run as an awesome engineering project, but in this case, they deprecated one of their formerly accepted data formats, without a deprecation warning.
the second of those two errors should be fixed in the release i just finished and pushed to pypi (v2.6.0). but let me know if you keep encountering that first issue, or any other issues, and i'll try to fix them up asap!
i also love success stories and general use stories, so if you've got any, i'm all ears.