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Fixes to the resample docs #3400

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merged 7 commits into from
Oct 16, 2019
Merged

Fixes to the resample docs #3400

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008c203
add a missing newline to make sphinx detect the code block
keewis Oct 15, 2019
2fcedff
update the link to the pandas documentation
keewis Oct 15, 2019
efc6a9c
explicitly state that this only works with datetime dimensions
keewis Oct 15, 2019
01640c6
also put the datetime dim requirement into the function description
keewis Oct 16, 2019
95f3808
add Series.resample and DataFrame.resample as reference
keewis Oct 16, 2019
2ea4a3c
add the changes to whats-new.rst
keewis Oct 16, 2019
ce79ef9
move references to the bottom of the docstring
keewis Oct 16, 2019
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12 changes: 8 additions & 4 deletions xarray/core/common.py
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Original file line number Diff line number Diff line change
Expand Up @@ -914,13 +914,16 @@ def resample(
):
"""Returns a Resample object for performing resampling operations.

Handles both downsampling and upsampling. If any intervals contain no
values from the original object, they will be given the value ``NaN``.
Handles both downsampling and upsampling. The resampled
dimension must be a datetime-like coordinate. If any intervals
contain no values from the original object, they will be given
the value ``NaN``.

Parameters
----------
indexer : {dim: freq}, optional
Mapping from the dimension name to resample frequency.
Mapping from the dimension name to resample frequency. The
dimension must be datetime-like.
skipna : bool, optional
Whether to skip missing values when aggregating in downsampling.
closed : 'left' or 'right', optional
Expand Down Expand Up @@ -978,6 +981,7 @@ def resample(
* time (time) datetime64[ns] 1999-12-15 1999-12-16 1999-12-17 ...

Limit scope of upsampling method

>>> da.resample(time='1D').nearest(tolerance='1D')
<xarray.DataArray (time: 337)>
array([ 0., 0., nan, ..., nan, 11., 11.])
Expand All @@ -987,7 +991,7 @@ def resample(
References
----------

.. [1] http://pandas.pydata.org/pandas-docs/stable/timeseries.html#offset-aliases
.. [1] https://pandas.pydata.org/pandas-docs/stable/user_guide/timeseries.html#offset-aliases
"""
# TODO support non-string indexer after removing the old API.

Expand Down