polars.Expr.or_

Expr.or_(*others: Any) → Expr

Method equivalent of bitwise “or” operator expr | other | ....

This has the effect of combining logical boolean expressions, but operates bitwise on integers.

Parameters:

*others

One or more integer or boolean expressions to evaluate/combine.

Examples

>>> df = pl.DataFrame(
...     data={
...         "x": [5, 6, 7, 4, 8],
...         "y": [1.5, 2.5, 1.0, 4.0, -5.75],
...         "z": [-9, 2, -1, 4, 8],
...     }
... )

Combine logical “or” conditions:

>>> df.select(
...     (pl.col("x") == pl.col("y"))
...     .or_(
...         pl.col("x") == pl.col("y"),
...         pl.col("y") == pl.col("z"),
...         pl.col("y").cast(int) == pl.col("z"),
...     )
...     .alias("any")
... )
shape: (5, 1)
┌───────┐
│ any   │
│ ---   │
│ bool  │
╞═══════╡
│ false │
│ true  │
│ false │
│ true  │
│ false │
└───────┘

Bitwise “or” operation on integer columns:

>>> df.select("x", "z", x_or_z=pl.col("x").or_(pl.col("z")))
shape: (5, 3)
┌─────┬─────┬────────┐
│ x   ┆ z   ┆ x_or_z │
│ --- ┆ --- ┆ ---    │
│ i64 ┆ i64 ┆ i64    │
╞═════╪═════╪════════╡
│ 5   ┆ -9  ┆ -9     │
│ 6   ┆ 2   ┆ 6      │
│ 7   ┆ -1  ┆ -1     │
│ 4   ┆ 4   ┆ 4      │
│ 8   ┆ 8   ┆ 8      │
└─────┴─────┴────────┘