statsmodels/statsmodels — pull request #2053 by kshedden (2014-10-20 01:31:24+00:00)
Title: Add NominalGEE and OrdinalGEE to api

This PR adds NominalGEE and OrdinalGEE to the API. Some related enhancements are bundled in too, specifically:

* Privatize the Multinomial and MultinomialLogit classes, make _Multinomial the default family for NominalGEE. Automate the setting of the number of levels.

* Make binomial the default family for OrdinalGEE.

* Docstring changes related to above.