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======
Window
======
.. currentmodule:: pyspark.pandas.window

Rolling objects are returned by ``.rolling`` calls: :func:`pyspark.pandas.DataFrame.rolling`, :func:`pyspark.pandas.Series.rolling`, etc.

Expanding objects are returned by ``.expanding`` calls: :func:`pyspark.pandas.DataFrame.expanding`, :func:`pyspark.pandas.Series.expanding`, etc.

ExponentialMoving objects are returned by ``.ewm`` calls: :func:`pyspark.pandas.DataFrame.ewm`, :func:`pyspark.pandas.Series.ewm`, etc.

Standard moving window functions
--------------------------------

.. autosummary::
   :toctree: api/

   Rolling.count
   Rolling.sum
   Rolling.min
   Rolling.max
   Rolling.mean
   Rolling.quantile
   Rolling.median
   Rolling.sem
   Rolling.std
   Rolling.var
   Rolling.skew
   Rolling.kurt
   RollingGroupby.median

Standard expanding window functions
-----------------------------------

.. autosummary::
   :toctree: api/

   Expanding.count
   Expanding.sum
   Expanding.min
   Expanding.max
   Expanding.mean
   Expanding.quantile
   Expanding.median
   Expanding.sem
   Expanding.std
   Expanding.var
   Expanding.skew
   Expanding.kurt
   ExpandingGroupby.median

Exponential moving window functions
-----------------------------------

.. autosummary::
   :toctree: api/

   ExponentialMoving.mean