Answers for "groupby after index"

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groupby as_index=false

When you use as_index=False , you indicate to groupby() that you don't want to set the column ID as the index (duh!). ... Using as_index=True allows you to apply a sum over axis=1 without specifying the names of the columns, then summing the value over axis 0.
Posted by: Guest on August-09-2020

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