BASS.generalized        Function that returns the results of
                        generalized Bass model
BASS.plot               Function that draws the plot of Bass model
BASS.standard           Function that returns estimate parameters of
                        bass standard model and the plot
BASS.standard.generator
                        Function that returns the results of standard
                        Bass model
GG.model                Function that returns the results of
                        Guseo-Guidolin model
make.instantaneous      Function that transforms your data
