Apply fillna to multiple columns in dataframe

[rraillon]

Try adding;
inplace=True

Thank you. I tried that and it didn't work (and the above was output to my Jupyter notebook so I could see the results) but I think, I have found a solution.

data.apply(lambda x: x.loc[data_cols_cy].fillna(value=x.loc['FC Month']), axis=1)

I think, my mistake was to restrict the data frame when calling apply. By just using the method on the entire data frame, I now have access to the other column I need.

Thanks again for the reply,

Rene