8000 DOC: update the Index.shift docstring by DataOmbudsman · Pull Request #20192 · pandas-dev/pandas · GitHub
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DOC: update the Index.shift docstring #20192

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merged 3 commits into from
Mar 10, 2018
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DOC: update the Index.shift docstring #20192

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a520a93
DOC: updating docstring of Index.shift
Mar 10, 2018
cafcf63
Add See Also section to shift
Mar 10, 2018
003cd14
Update link to Series.shift
Mar 10, 2018
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DOC: updating docstring of Index.shift
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Arpad Fulop committed Mar 10, 2018
commit a520a9394d494d9a3b0aa5052e9a1e5d439c4aed
11 changes: 6 additions & 5 deletions pandas/core/indexes/base.py
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Expand Up @@ -2256,18 +2256,19 @@ def sortlevel(self, level=None, ascending=True, sort_remaining=None):
return self.sort_values(return_indexer=True, ascending=ascending)

def shift(self, periods=1, freq=None):
"""Shift index by desired number of time frequency increments.
"""
Shift index by desired number of time frequency increments.

This method is for shifting the values of datetime-like indexes
by a specified time increment a given number of times.

Parameters
----------
periods : int
periods : int, default 1
Number of periods (or increments) to shift by,
can be positive or negative (default is 1).
freq : pandas.DateOffset, pandas.Timedelta or string
Frequency increment to shift by (default is None).
can be positive or negative.
freq : pandas.DateOffset, pandas.Timedelta or string, optional
Frequency increment to shift by.
If None, the index is shifted by its own `freq` attribute.
Offset aliases are valid strings, e.g., 'D', 'W', 'M' etc.

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