dask.dataframe.rolling.Rolling.count
- Rolling.count()[source]
The rolling count of any non-NaN observations inside the window.
This docstring was copied from pandas.core.window.rolling.Rolling.count.
Some inconsistencies with the Dask version may exist.
- Returns
- Series or DataFrame
Returned object type is determined by the caller of the rolling calculation.
See also
pandas.Series.rolling
Calling object with Series data.
pandas.DataFrame.rolling
Calling object with DataFrames.
pandas.DataFrame.count
Count of the full DataFrame.
Examples
>>> s = pd.Series([2, 3, np.nan, 10]) >>> s.rolling(2).count() 0 1.0 1 2.0 2 1.0 3 1.0 dtype: float64 >>> s.rolling(3).count() 0 1.0 1 2.0 2 2.0 3 2.0 dtype: float64 >>> s.rolling(4).count() 0 1.0 1 2.0 2 2.0 3 3.0 dtype: float64