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

final Resampler.count()[source]#

Compute count of group, excluding missing values.

Returns:

Series or DataFrame

Count of values within each group.

See also

Series.groupby

Apply a function groupby to a Series.

DataFrame.groupby

Apply a function groupby to each row or column of a DataFrame.

Examples

ser = pd.Series( ... [1, 2, 3, 4], ... index=pd.DatetimeIndex( ... ["2023-01-01", "2023-01-15", "2023-02-01", "2023-02-15"] ... ), ... ) ser 2023-01-01 1 2023-01-15 2 2023-02-01 3 2023-02-15 4 dtype: int64 ser.resample("MS").count() 2023-01-01 2 2023-02-01 2 Freq: MS, dtype: int64