polars.Expr.shuffle#
- Expr.shuffle(seed: int | None = None) Expr [source]#
Shuffle the contents of this expression.
Note this is shuffled independently of any other column or Expression. If you want each row to stay the same use df.sample(shuffle=True)
- Parameters:
- seed
Seed for the random number generator. If set to None (default), a random seed is generated each time the shuffle is called.
Examples
>>> df = pl.DataFrame({"a": [1, 2, 3]}) >>> df.select(pl.col("a").shuffle(seed=1)) shape: (3, 1) ┌─────┐ │ a │ │ --- │ │ i64 │ ╞═════╡ │ 2 │ │ 1 │ │ 3 │ └─────┘