polars.LazyFrame.reverse#
- LazyFrame.reverse() LazyFrame [source]#
Reverse the DataFrame.
Examples
>>> lf = pl.LazyFrame( ... { ... "key": ["a", "b", "c"], ... "val": [1, 2, 3], ... } ... ) >>> lf.reverse().collect() shape: (3, 2) ┌─────┬─────┐ │ key ┆ val │ │ --- ┆ --- │ │ str ┆ i64 │ ╞═════╪═════╡ │ c ┆ 3 │ │ b ┆ 2 │ │ a ┆ 1 │ └─────┴─────┘