Select the inverse index in pd.Dataframe

Question

How to select the inverse index in pd.DataFrame by using loc or iloc?

I tried df.loc[!my_index,my_feature] but fail.

Answer 1

You may take advantage of index.difference.

idx2 = df.index.difference(my_index)

Or, set.difference

idx2 = set(df.index).difference(my_index) # note, order not guaranteed

df.loc[idx2, ...]