pandas.core.groupby.DataFrameGroupBy.shift

DataFrameGroupBy.shift(periods=1, freq=None, axis=0) [source]

Shift each group by periods observations

Parameters:

periods : integer, default 1

number of periods to shift

freq : frequency string

axis : axis to shift, default 0

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https://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.core.groupby.DataFrameGroupBy.shift.html