daft.DataFrame.with_column_renamed#
- DataFrame.with_column_renamed(existing: str, new: str) DataFrame[source]#
Renames a column in the current DataFrame.
If the column in the DataFrame schema does not exist, this will be a no-op.
Example
>>> import daft >>> df = daft.from_pydict({"x": [1, 2, 3], "y": [4, 5, 6]}) >>> df.with_column_renamed("x", "foo").show() ╭───────┬───────╮ │ foo ┆ y │ │ --- ┆ --- │ │ Int64 ┆ Int64 │ ╞═══════╪═══════╡ │ 1 ┆ 4 │ ├╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┤ │ 2 ┆ 5 │ ├╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌┤ │ 3 ┆ 6 │ ╰───────┴───────╯ (Showing first 3 of 3 rows)
- Parameters:
existing (str) – name of the existing column to rename
new (str) – new name for the column
- Returns:
DataFrame with the column renamed.
- Return type: