daft.Expression.str.match#
- Expression.str.match(pattern: str | daft.expressions.expressions.Expression) Expression[source]#
Checks whether each string matches the given regular expression pattern in a string column
Example
>>> import daft >>> df = daft.from_pydict({"x": ["foo", "bar", "baz"]}) >>> df.with_column("match", df["x"].str.match("ba.")).collect() ╭──────┬─────────╮ │ x ┆ match │ │ --- ┆ --- │ │ Utf8 ┆ Boolean │ ╞══════╪═════════╡ │ foo ┆ false │ ├╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌┤ │ bar ┆ true │ ├╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌┤ │ baz ┆ true │ ╰──────┴─────────╯ (Showing first 3 of 3 rows)
- Parameters:
pattern – Regex pattern to search for as string or as a column to pick values from
- Returns:
a Boolean expression indicating whether each value matches the provided pattern
- Return type:
Expression