pandas.DataFrame.asfreq

DataFrame.asfreq(freq, method=None, how=None, normalize=False)

Convert TimeSeries to specified frequency.

Optionally provide filling method to pad/backfill missing values.

Parameters:

freq : DateOffset object, or string method : {‘backfill’/’bfill’, ‘pad’/’ffill’}, default None Method to use for filling holes in reindexed Series (note this does not fill NaNs that already were present): ‘pad’ / ‘ffill’: propagate last valid observation forward to next valid ‘backfill’ / ‘bfill’: use NEXT valid observation to fill how : {‘start’, ‘end’}, default end For PeriodIndex only, see PeriodIndex.asfreq normalize : bool, default False Whether to reset output index to midnight

Returns:

converted : type of caller To learn more about the frequency strings, please see `this link <http://pandas.pydata.org/pandas-docs/stable/timeseries.html#offset-aliases>`__.