Get unique values in a list
Description
Get unique values in a list
Usage
<Expr>$list$unique(maintain_order = FALSE)
Arguments
maintain_order
|
Maintain order of data. This requires more work. |
Value
Expr
Examples
library("polars")
df = pl$DataFrame(values = list(c(2, 2, NA), c(1, 2, 3), NA_real_))
df$with_columns(unique = pl$col("values")$list$unique())
#> shape: (3, 2)
#> ┌──────────────────┬─────────────────┐
#> │ values ┆ unique │
#> │ --- ┆ --- │
#> │ list[f64] ┆ list[f64] │
#> ╞══════════════════╪═════════════════╡
#> │ [2.0, 2.0, null] ┆ [null, 2.0] │
#> │ [1.0, 2.0, 3.0] ┆ [1.0, 2.0, 3.0] │
#> │ [null] ┆ [null] │
#> └──────────────────┴─────────────────┘