I have not read the code, but assuming df is a pandas dataframe, it sets the 'y' column to the log of what was previously the 'y' column. https://gist.github.c

I have not read the code, but assuming df is a pandas dataframe, it sets the 'y' column to the log of what was previously the 'y' column. https://gist.github.com/llimllib/385230f38c3f9b70c3e46158e6029f2a https://gist.github.com/llimllib/385230f38c3f9b70c3e46158e60...