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pandas.core.groupby.DataFrameGroupBy.tshift

DataFrameGroupBy.tshift

Shift the time index, using the index’s frequency if available.

Parameters:

periods : int

Number of periods to move, can be positive or negative

freq : DateOffset, timedelta, or time rule string, default None

Increment to use from the tseries module or time rule (e.g. ‘EOM’)

axis : int or basestring

Corresponds to the axis that contains the Index

Returns:
shifted : NDFrame

Notes

If freq is not specified then tries to use the freq or inferred_freq attributes of the index. If neither of those attributes exist, a ValueError is thrown

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http://pandas.pydata.org/pandas-docs/version/0.23.4/generated/pandas.core.groupby.DataFrameGroupBy.tshift.html