Zelig-ei-class          Ecological Inference object for inheritance
                        across models in ZeligEI
Zelig-eidynamic-class   Quinn's Dynamic Ecological Inference Model
Zelig-eihier-class      Wakefield's Hierarchical Ecological Inference
                        Model
Zelig-eiml-class        Ecological Inference Model by Maximum
                        Likelihood
Zelig-eirxc-class       Multinomial Dirichlet model for Ecological
                        Inference in RxC tables
createJSONzeligei       Utility function for constructing JSON file
                        that encodes the hierarchy of available
                        statistical models in ZeligEI
