dask_expr._rolling.Rolling.skew
dask_expr._rolling.Rolling.skew¶
- Rolling.skew()[source]¶
Calculate the rolling unbiased skewness.
This docstring was copied from pandas.core.window.rolling.Rolling.skew.
Some inconsistencies with the Dask version may exist.
- Parameters
- numeric_onlybool, default False (Not supported in Dask)
Include only float, int, boolean columns.
New in version 1.5.0.
- Returns
- Series or DataFrame
Return type is the same as the original object with
np.float64
dtype.
See also
scipy.stats.skew
Third moment of a probability density.
pandas.Series.rolling
Calling rolling with Series data.
pandas.DataFrame.rolling
Calling rolling with DataFrames.
pandas.Series.skew
Aggregating skew for Series.
pandas.DataFrame.skew
Aggregating skew for DataFrame.
Notes
A minimum of three periods is required for the rolling calculation.
Examples
>>> ser = pd.Series([1, 5, 2, 7, 15, 6]) >>> ser.rolling(3).skew().round(6) 0 NaN 1 NaN 2 1.293343 3 -0.585583 4 0.670284 5 1.652317 dtype: float64