pandas.core.groupby.DataFrameGroupBy.diff¶
- DataFrameGroupBy.diff(periods=1, axis=0)¶
1st discrete difference of object
Parameters: periods : int, default 1
Periods to shift for forming difference
axis : {0 or ‘index’, 1 or ‘columns’}, default 0
Take difference over rows (0) or columns (1).
Returns: diffed : DataFrame