statsmodels/statsmodels — pull request #1133 by jseabold (2013-10-21 14:06:02+00:00)
Title: WIP: Add Panel Data models

I think this is ready to at least start talking about. There are still a few TODOs in the source, particularly with making sure that twoway effects are correctly handled. Stata doesn't offer much in the way of twoway effects, assuming that for most panel models N >> T.

This supersedes #690, which can be closed but referred to for more information.