Trait polars_core::chunked_array::ops::ChunkRollApply

pub trait ChunkRollApply {
    fn rolling_apply(
        &self, 
        _window_size: usize, 
        _f: &dyn Fn(&Series) -> Series
    ) -> Result<Self>
    where
        Self: Sized,
    { ... }
}

This is supported on crate feature rolling_window only.

This differs from ChunkWindowCustom and ChunkWindow by not using a fold aggregator, but reusing a Series wrapper and calling Series aggregators. This likely is a bit slower than ChunkWindow

Provided methods

fn rolling_apply(
    &self,
    _window_size: usize,
    _f: &dyn Fn(&Series) -> Series
) -> Result<Self> where
    Self: Sized, 

Implementors

impl<T> ChunkRollApply for ChunkedArray<T> where
    T: PolarsNumericType,
    Self: IntoSeries,