is.polymars	test for polymars objects 
plot.polymars	plot.polymars - plots for polymars models 
polymars	Multi-response Multivariate Adaptive Regression Splines   
predict.polymars	predict.polymars - fitted values from a `polymars' model 
print.polymars	print.polymars - summarizes a polymars model  
summary.polymars	summary.polymars - summarizes a polymars model 
