pandas.core.groupby.DataFrameGroupBy.tshift¶
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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 : Series/DataFrame
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