xorbits.pandas.window.Expanding.count

Expanding.count()

Calculate the expanding count of non NaN observations.

Returns

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

Return type

Series or DataFrame

See also

pandas.Series.expanding

Calling expanding with Series data.

pandas.DataFrame.expanding

Calling expanding with DataFrames.

pandas.Series.count

Aggregating count for Series.

pandas.DataFrame.count

Aggregating count for DataFrame.

Examples

>>> ser = pd.Series([1, 2, 3, 4], index=['a', 'b', 'c', 'd'])  
>>> ser.expanding().count()  
a    1.0
b    2.0
c    3.0
d    4.0
dtype: float64

This docstring was copied from pandas.core.window.expanding.Expanding.