polars.Expr.list.tail

Expr.list.tail(n: int | str | Expr = 5) → Expr

Slice the last n values of every sublist.

Parameters:

n

Number of values to return for each sublist.

Examples

>>> df = pl.DataFrame({"a": [[1, 2, 3, 4], [10, 2, 1]]})
>>> df.with_columns(tail=pl.col("a").list.tail(2))
shape: (2, 2)
┌─────────────┬───────────┐
│ a           ┆ tail      │
│ ---         ┆ ---       │
│ list[i64]   ┆ list[i64] │
╞═════════════╪═══════════╡
│ [1, 2, … 4] ┆ [3, 4]    │
│ [10, 2, 1]  ┆ [2, 1]    │
└─────────────┴───────────┘