Aggregate the columns in the LazyFrame to their mean value

Description

Aggregate the columns in the LazyFrame to their mean value

Usage

<LazyFrame>$mean()

Value

A polars LazyFrame

Examples

library("polars")

lf <- pl$LazyFrame(a = 1:4, b = c(1, 2, 1, 1))
lf$mean()$collect()

#> shape: (1, 2)
#> ┌─────┬──────┐
#> │ a   ┆ b    │
#> │ --- ┆ ---  │
#> │ f64 ┆ f64  │
#> ╞═════╪══════╡
#> │ 2.5 ┆ 1.25 │
#> └─────┴──────┘