Issues trying to add two columns together

[norahx]

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I tried to generate a new column by adding two other columns.

hh_rfm['eRFM']=hh_rfm['MF']+hh_rfm['R']

This way usually works, however it doesn’t work sometimes.

I found out the reason being is the type of hh_rfm[‘MF’] is numpy.int64

and hh_rfm[‘R’] is int

Is there any easy way to add these two different type columns together instead of using extra function to add two columns?

Thanks,

[Datura]

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A better way is to convert all the R/F/M index to character strings, then concatenate them together. Use a character RFM index rather than numeric.

• This reply was modified 4 years, 2 months ago by  Datura.