[MRG] DOC Added version information for PCA.singular_values_ (scikit-learn#13776)

olegstikhin · jnothman · commit 47ca768eaa47 · 2019-05-06T23:13:30.000+10:00
diff --git a/sklearn/decomposition/pca.py b/sklearn/decomposition/pca.py
@@ -223,6 +223,8 @@ class PCA(_BasePCA):
         The singular values are equal to the 2-norms of the ``n_components``
         variables in the lower-dimensional space.
 
+        .. versionadded:: 0.19
+
     mean_ : array, shape (n_features,)
         Per-feature empirical mean, estimated from the training set.
 
