statsmodels/statsmodels — pull request #301 by josef-pkt (2012-06-01 19:40:58+00:00)
Title: WIP: ENH PanelAR1: add Prais-Winston for 1st obs, same as Stata

work in progress (opened so I don't lose sight of it)

AR1Panel verifies against Stata for given rho

needs refactoring