Function polars_lazy::dsl::functions::cumreduce_exprs

pub fn cumreduce_exprs<F, E>(f: F, exprs: E) -> Exprwhere
    F: 'static + Fn(Series, Series) -> Result<Series, PolarsError> + Send + Sync + Clone,
    E: AsRef<[Expr]>,

Available on crate feature dtype-struct only.

Accumulate over multiple columns horizontally / row wise.