polars.Expr.upper_bound#
- Expr.upper_bound() Expr [source]#
Calculate the upper bound.
Returns a unit Series with the highest value possible for the dtype of this expression.
Examples
>>> df = pl.DataFrame({"a": [1, 2, 3, 2, 1]}) >>> df.select(pl.col("a").upper_bound()) shape: (1, 1) ┌─────────────────────┐ │ a │ │ --- │ │ i64 │ ╞═════════════════════╡ │ 9223372036854775807 │ └─────────────────────┘