Resampler

Time series resampling operations.

Example

import pandasCore as pd

# Create time series
dates = pd.date_range('2023-01-01', periods=100, freq='D')
s = pd.Series(range(100), index=dates)

# Downsample to monthly
s.resample('M').mean()

# Upsample to hourly with forward fill
s.resample('H').ffill()

Parameters

Parameter	Type	Default	Description
rule	str	required	Resampling frequency
axis	int	0	Axis to resample
closed	str	None	Which side of bin is closed
label	str	None	Which bin edge to label with
convention	str	‘start’	For PeriodIndex, ‘start’ or ‘end’
kind	str	None	‘timestamp’ or ‘period’
on	str	None	Column to use for resampling

Frequency Strings

Alias	Description
S	Second
T, min	Minute
H	Hour
D	Day
W	Week
M	Month end
MS	Month start
Q	Quarter end
QS	Quarter start
A, Y	Year end
AS, YS	Year start

Aggregation Methods

count(), sum(), mean(), median(), std(), var(), min(), max(), first(), last(), ohlc(), prod(), size(), sem()

Upsampling Methods

ffill(), bfill(), pad(), backfill(), fillna(method), asfreq(), interpolate()