Function polars_plan::dsl::functions::cumfold_exprs

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.

Accumulate over multiple columns horizontally / row wise.