chore: restore inadvertently removed func and apply suggestion to avo…

…id branching
narwhals-dev · Oct 30, 2024 · a7156fa · a7156fa
1 parent 4b8da4c
commit a7156fa
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/narwhals/_polars/namespace.py b/narwhals/_polars/namespace.py
@@ -117,6 +117,13 @@ def mean_horizontal(self, *exprs: IntoPolarsExpr) -> PolarsExpr:
             dtypes=self._dtypes,
         )
 
+    def median(self, *column_names: str) -> PolarsExpr:
+        import polars as pl  # ignore-banned-import()
+
+        from narwhals._polars.expr import PolarsExpr
+
+        return PolarsExpr(pl.median([*column_names]), dtypes=self._dtypes)  # type: ignore[arg-type]
+
     def concat_str(
         self,
         exprs: Iterable[IntoPolarsExpr],