remove train_score from doctest

amueller · amueller · commit 2042ded91c07 · 2018-10-02T13:43:18.000-04:00
diff --git a/doc/modules/cross_validation.rst b/doc/modules/cross_validation.rst
@@ -231,7 +231,7 @@ Here is an example of ``cross_validate`` using a single metric::
     ...                         scoring='precision_macro', cv=5,
     ...                         return_estimator=True)
     >>> sorted(scores.keys())
-    ['estimator', 'fit_time', 'score_time', 'test_score', 'train_score']
+    ['estimator', 'fit_time', 'score_time', 'test_score']
 
 
 Obtaining predictions by cross-validation
