pandas.core.groupby.DataFrameGroupBy.diff

First discrete difference of element.

Calculates the difference of a DataFrame element compared with another element in the DataFrame (default is the element in the same column of the previous row).

param periods

int, default 1

Periods to shift for calculating difference, accepts negative values.

param axis

{0 or ‘index’, 1 or ‘columns’}, default 0

Take difference over rows (0) or columns (1).

New in version 0.16.1..

return

DataFrame

Warning

This feature is currently unsupported by Intel Scalable Dataframe Compiler