This section contains programs for PolyMARS, (polychotomous) regression 
based on ``Multivariate Adaptive Regression Splines'' J.H. Friedman (1991)
and ``Polychotomous Regression'' Kooperberg, C, Bose, S. and Stone C.J..  
The functions were developed by Charles Kooperberg and Martin O'Connor.

FUNCTION          USE
 
polymars          polymars modeling
predict.polymars  fitted values from a polymars model
plot.polymars     plot a polymars model
is.polymars       is an object a object returned by polymars
summary.polymars  summarizes a polymars model and fitting steps
polymars.persp    used internally by plot.polymars

Ported to Windows by B.D. Ripley (ripley@stats.ox.ac.uk) 97/12/12