this should do it... tests running locally with upgrade to statsmodels 0.9.0...
per the 0.9.0 release notes:
In MixedLM, names for the random effects variance and covariance
parameters have changed from, e.g. G RE to G Var or G x F Cov. This
impacts summary output, and also may require modifications to user
code that extracted these parameters from the fitted results object
by name.
fixes #96
this should do it... tests running locally with upgrade to statsmodels 0.9.0...
per the 0.9.0 release notes: