pub trait ChunkRollApply: AsRefDataType {
// Provided method
fn rolling_map(
&self,
_f: &dyn Fn(&Series) -> Series,
_options: RollingOptionsFixedWindow,
) -> PolarsResult<Series>
where Self: Sized { ... }
}
Available on crate feature
rolling_window
only.Expand description
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