DOC: Improve docstring for pandas.Index.repeat (pandas-dev#19985)

pandas/core/indexes/base.py

@@ -696,12 +696,38 @@ def memory_usage(self, deep=False):
     @deprecate_kwarg(old_arg_name='n', new_arg_name='repeats')
     def repeat(self, repeats, *args, **kwargs):
         """
-        Repeat elements of an Index. Refer to `numpy.ndarray.repeat`
-        for more information about the `repeats` argument.
+        Repeat elements of an Index.
 
-        See also
+        Returns a new index where each element of the current index
+        is repeated consecutively a given number of times.
+
+        Parameters
+        ----------
+        repeats : int
+            The number of repetitions for each element.
+        **kwargs
+            Additional keywords have no effect but might be accepted for
+            compatibility with numpy.
+
+        Returns
+        -------
+        pandas.Index
+            Newly created Index with repeated elements.
+
+        See Also
+        --------
+        Series.repeat : Equivalent function for Series
+        numpy.repeat : Underlying implementation
+
+        Examples
         --------
-        numpy.ndarray.repeat
+        >>> idx = pd.Index([1, 2, 3])
+        >>> idx
+        Int64Index([1, 2, 3], dtype='int64')
+        >>> idx.repeat(2)
+        Int64Index([1, 1, 2, 2, 3, 3], dtype='int64')
+        >>> idx.repeat(3)
+        Int64Index([1, 1, 1, 2, 2, 2, 3, 3, 3], dtype='int64')
         """
         nv.validate_repeat(args, kwargs)
         return self._shallow_copy(self._values.repeat(repeats))