statsmodels/statsmodels — pull request #2161 by rgommers (2014-12-27 13:31:21+00:00)
Title: MAINT: fix some test and style issues with tsa.filters.hp_filter.

The issue with relative import of test results is that it breaks running the tests in that file (with ``nose.runmodule``). This pattern is used in lots of places in the test suite. I can fix them all up if you agree with the change.

Other fixes are pyflakes/pep8.