returns the max value of a column grouped by another column
Wed Jun 23 2021 08:03:33 GMT+0000 (Coordinated Universal Time)
Saved by @CaoimhedeFrein #python
this code groups the column customers by segment. it then finds the max customer count per segment & makes a new column in the dataframe, populated with that max customer count
https://stackoverflow.com/questions/15705630/get-the-rows-which-have-the-max-value-in-groups-using-groupby
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