works: ``` In [9]: d = pandas.DataFrame({'A': 'foo', 'B': ts.values}, index=dr) In [10]: d.head() Out[10]: A B 2011-01-07 foo 2011-01-07 00:00:00 2011-01-14 foo 2011-01-14 00:00:00 2011-01-21 foo 2011-01-21 00:00:00 2011-01-28 foo 2011-01-28 00:00:00 2011-02-04 foo 2011-02-04 00:00:00 ``` does not work: ``` d = pandas.DataFrame({'A': 'foo', 'B': ts.values}, index=dr) ```