polars.LazyFrame.slice#
- LazyFrame.slice( ) LazyFrame [source]#
Get a slice of this DataFrame.
- Parameters:
- offset
Start index. Negative indexing is supported.
- length
Length of the slice. If set to
None
, all rows starting at the offset will be selected.
Examples
>>> lf = pl.LazyFrame( ... { ... "a": ["x", "y", "z"], ... "b": [1, 3, 5], ... "c": [2, 4, 6], ... } ... ) >>> lf.slice(1, 2).collect() shape: (2, 3) ┌─────┬─────┬─────┐ │ a ┆ b ┆ c │ │ --- ┆ --- ┆ --- │ │ str ┆ i64 ┆ i64 │ ╞═════╪═════╪═════╡ │ y ┆ 3 ┆ 4 │ │ z ┆ 5 ┆ 6 │ └─────┴─────┴─────┘