The function pssm
fits the model and outputs a pssm-object
S4 object, this can input to pssm.survivalcurv
which
outputs a function of time, that can be used to create time to
progression and survival curves for the model with specified covariate values.
In addition pssm.simulate
is given to generate data to test the model.
Functions "llikef","rprog","sprog" are helper functions, methods "plot","print" and "summary" are available.