polars.select¶
- polars.select(exprs: Union[str, polars.internals.expr.Expr, Sequence[str], Sequence[polars.internals.expr.Expr], polars.internals.series.Series]) polars.internals.frame.DataFrame ¶
Run polars expressions without a context.
This is syntactic sugar for running df.select on an empty DataFrame.
- Parameters
- exprs
Expressions to run
- Returns
- ——-
- DataFrame
Examples
>>> foo = pl.Series("foo", [1, 2, 3]) >>> bar = pl.Series("bar", [3, 2, 1]) >>> pl.select( ... [ ... pl.min([foo, bar]), ... ] ... ) shape: (3, 1) ┌─────┐ │ min │ │ --- │ │ i64 │ ╞═════╡ │ 1 │ ├╌╌╌╌╌┤ │ 2 │ ├╌╌╌╌╌┤ │ 1 │ └─────┘