DOC: minor cookbook/io doc corrections

Author: jreback

doc/source/cookbook.rst

@@ -298,6 +298,9 @@ The :ref:`Timedeltas <timeseries.timedeltas>` docs.
 `Operating with timedeltas
 <https://github.com/pydata/pandas/pull/2899>`__
 
+`Create timedeltas with date differences
+<http://stackoverflow.com/questions/15683588/iterating-through-a-pandas-dataframe>`__
+
 Aliasing Axis Names
 -------------------
 

doc/source/indexing.rst

@@ -836,9 +836,9 @@ convert to an integer index:
 .. ipython:: python
 
     df_new = df.reset_index()
-    df_new[df_new.index == 1.0]
+    df_new[df_new['index'] == 1.0]
     # now you can also do "float selection"
-    df_new[(df_new.index >= 1.0) & (df_new.index < 2)]
+    df_new[(df_new['index'] >= 1.0) & (df_new['index'] < 2)]
 
 
 .. _indexing.class: