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