DOC: remove use of deprecated index set operation (follow-up GH10042)

jorisvandenbossche · jorisvandenbossche · commit ef3ff5b37d1b · 2015-05-06T01:42:54.000+02:00
diff --git a/doc/source/basics.rst b/doc/source/basics.rst
@@ -1004,7 +1004,7 @@ Note that the following also works, but is a bit less obvious / clean:
 
 .. ipython:: python
 
-   df.reindex(df.index - ['a', 'd'])
+   df.reindex(df.index.difference(['a', 'd']))
 
 .. _basics.rename:
 
