piper.verbs.fmt_dateidx

piper.verbs.fmt_dateidx(df: pandas.core.frame.DataFrame, freq: str = 'D') → pandas.core.frame.DataFrame

format dataframe datelike index

Checks if dataframe index contains a date-like grouper object. If so, applies the ‘frequency’ string given.

Examples

Parameters

• df – dataframe

• freq – Default ‘d’ (days) See https://pandas.pydata.org/pandas-docs/stable/user_guide/timeseries.html#offset-aliases for list of valid frequency strings.

Returns

Return type

A pandas DataFrame

piper.verbs.unstack piper.verbs.rename_axis