polars.DataFrame.to_dummies¶
- DataFrame.to_dummies() polars.internals.frame.DF ¶
Get one hot encoded dummy variables.
Examples
>>> df = pl.DataFrame( ... { ... "foo": [1, 2, 3], ... "bar": [6, 7, 8], ... "ham": ["a", "b", "c"], ... } ... ) >>> df.to_dummies() shape: (3, 9) ┌───────┬───────┬───────┬───────┬─────┬───────┬───────┬───────┬───────┐ │ foo_1 ┆ foo_2 ┆ foo_3 ┆ bar_6 ┆ ... ┆ bar_8 ┆ ham_a ┆ ham_b ┆ ham_c │ │ --- ┆ --- ┆ --- ┆ --- ┆ ┆ --- ┆ --- ┆ --- ┆ --- │ │ u8 ┆ u8 ┆ u8 ┆ u8 ┆ ┆ u8 ┆ u8 ┆ u8 ┆ u8 │ ╞═══════╪═══════╪═══════╪═══════╪═════╪═══════╪═══════╪═══════╪═══════╡ │ 1 ┆ 0 ┆ 0 ┆ 1 ┆ ... ┆ 0 ┆ 1 ┆ 0 ┆ 0 │ ├╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┤ │ 0 ┆ 1 ┆ 0 ┆ 0 ┆ ... ┆ 0 ┆ 0 ┆ 1 ┆ 0 │ ├╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┤ │ 0 ┆ 0 ┆ 1 ┆ 0 ┆ ... ┆ 1 ┆ 0 ┆ 0 ┆ 1 │ └───────┴───────┴───────┴───────┴─────┴───────┴───────┴───────┴───────┘