Struct SeriesGroupByEwm 

pub struct SeriesGroupByEwm<'grouped, 'data> { /* private fields */ }

Grouped exponentially weighted window over a SeriesGroupBy.

Created by SeriesGroupBy::ewm(). Applies existing Series EWM operations within each group independently, then maps the results back to the original flat Series index.

Implementations

impl SeriesGroupByEwm<'_, '_>

pub fn mean(&self) -> Result<Series, FrameError>

Grouped EWM mean.

pub fn sum(&self) -> Result<Series, FrameError>

Grouped EWM sum.

pub fn std(&self) -> Result<Series, FrameError>

Grouped EWM sample standard deviation.

pub fn var(&self) -> Result<Series, FrameError>

Grouped EWM sample variance.