Error when I try to calculate the normalization on Jupyter notebook (with '-' and df)

Question

I'm just discovering pandas, I tried to google the error but I found nothing. When I try to calculate this: X = (X - X.min()) / (X.max() - X.min()) knowing that ( X = titanic[['sex','age','fare','class','embark_town','alone']].copy()) I get this: enter image description here

enter image description here

Please any suggestions to correct it?

Answer 1

At least the error is telling you that you can not use "-" operator to the boolean type of operators. So it seems that X.min() equals to True or False.

Answer 2

You should normalize numerical features only (like fare in the Titanic dataset).