lattice, modeltools (>= 0.2-16), multcomp
MASS, ellipse, grid, lme4, mvtnorm, nnet
FlexMix implements a general framework for finite mixtures
of regression models using the EM algorithm. FlexMix provides
the E-step and all data handling, while the M-step can be
supplied by the user to easily define new models. Existing
drivers implement mixtures of standard linear models,
generalized linear models and model-based clustering.