Function polars_plan::dsl::functions::cumfold_exprs
source · pub fn cumfold_exprs<F, E: AsRef<[Expr]>>(
acc: Expr,
f: F,
exprs: E,
include_init: bool
) -> Exprwhere
F: Fn(Series, Series) -> PolarsResult<Series> + Send + Sync + Clone + 'static,
Available on crate feature
rank
only.Expand description
Accumulate over multiple columns horizontally / row wise.