pandas.core.resample.Resampler.transform#
- Resampler.transform(arg, *args, **kwargs)[source]#
Call function producing a like-indexed Series on each group and return a Series with the transformed values.
- Parameters
- argfunction
To apply to each group. Should return a Series with the same index.
- Returns
- transformedSeries
Examples
>>> s = pd.Series([1, 2], ... index=pd.date_range('20180101', ... periods=2, ... freq='1h')) >>> s 2018-01-01 00:00:00 1 2018-01-01 01:00:00 2 Freq: H, dtype: int64
>>> resampled = s.resample('15min') >>> resampled.transform(lambda x: (x - x.mean()) / x.std()) 2018-01-01 00:00:00 NaN 2018-01-01 01:00:00 NaN Freq: H, dtype: float64