Merge pull request #8 from mishpat/patch-1

Change statistical description of standard error

python/polars_ds/extensions.py

@@ -12,7 +12,7 @@ def __init__(self, expr: pl.Expr):
 
     def std_err(self, ddof: int = 1) -> pl.Expr:
         """
-        Returns the standard error of the variable.
+        Estimates the standard error for the mean of the expression.
         """
         return self._expr.std(ddof=ddof) / self._expr.count().sqrt()