polars.Expr.arr.max

Expr.arr.max() → Expr

Compute the max value of the lists in the array.

Examples

>>> df = pl.DataFrame({"values": [[1], [2, 3]]})
>>> df.select(pl.col("values").arr.max())
shape: (2, 1)
┌────────┐
│ values │
│ ---    │
│ i64    │
╞════════╡
│ 1      │
│ 3      │
└────────┘