pandas.api.typing.Rolling.count — pandas 3.0.0rc0+48.gc16f4591ee documentation (original) (raw)

Rolling.count(numeric_only=False)[source]#

Calculate the rolling count of non NaN observations.

Parameters:

numeric_onlybool, default False

Include only float, int, boolean columns.

Returns:

Series or DataFrame

Return type is the same as the original object with np.float64 dtype.

See also

Series.rolling

Calling rolling with Series data.

DataFrame.rolling

Calling rolling with DataFrames.

Series.count

Aggregating count for Series.

DataFrame.count

Aggregating count for DataFrame.

Examples

s = pd.Series([2, 3, np.nan, 10]) s.rolling(2).count() 0 NaN 1 2.0 2 1.0 3 1.0 dtype: float64 s.rolling(3).count() 0 NaN 1 NaN 2 2.0 3 2.0 dtype: float64 s.rolling(4).count() 0 NaN 1 NaN 2 NaN 3 3.0 dtype: float64