A function (which uses a similar interface to the `glm' function) for the fitting of a Conway-Maxwell-Poisson GLM. There are also various methods for analysis of the model fit. The package also contains functions for the Conway-Maxwell-Poisson distribution in a similar interface to functions `dpois', `ppois' and `rpois'. The functions are generally quick, since the workhorse functions are written in C++ (thanks to the Rcpp package).