Produce a cross-validation plot.
Plots the value of the GCV (or other statistic) in a gcvplot
object
against the degrees of freedom of the fit.
## S3 method for class 'gcvplot' plot(x, xlab = "Fitted DF", ylab = x$cri, ...)
data(ethanol) plot(gcvplot(NOx~E,data=ethanol,alpha=seq(0.2,1.0,by=0.05)))
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.