pandas.core.groupby.DataFrameGroupBy.shift#
- DataFrameGroupBy.shift(periods=1, freq=None, axis=0, fill_value=None)[source]#
Shift each group by periods observations.
If freq is passed, the index will be increased using the periods and the freq.
- Parameters
- periodsint, default 1
Number of periods to shift.
- freqstr, optional
Frequency string.
- axisaxis to shift, default 0
Shift direction.
- fill_valueoptional
The scalar value to use for newly introduced missing values.
- Returns
- Series or DataFrame
Object shifted within each group.
See also
Index.shiftShift values of Index.
tshiftShift the time index, using the index’s frequency if available.