CGP (version 2.1-1)

plotCGP: Jackknife (leave-one-out) actual by predicted diagnostic plot

Description

Draw jackknife (leave-one-out) actual by predicted plot to measure goodness-of-fit.

Usage

plotCGP(object)

Arguments

object

An object of class "CGP"

Value

This function draws the jackknife (leave-one-out) actual by predicted plot.

Details

Draw the actual observed values on the y-axis and the jackknife (leave-one-out) predicted values on the x-axis. The goodness-of-fit can be measured by how well the points lie along the 45 degree diagonal line.

References

Ba, S. and V. Roshan Joseph (2012) ``Composite Gaussian Process Models for Emulating Expensive Functions''. Annals of Applied Statistics, 6, 1838-1860.

See Also

CGP

Examples

# NOT RUN {
x1<-c(0,.02,.075,.08,.14,.15,.155,.156,.18,.22,.29,.32,.36,
.37,.42,.5,.57,.63,.72,.785,.8,.84,.925,1)
x2<-c(.29,.02,.12,.58,.38,.87,.01,.12,.22,.08,.34,.185,.64,
.02,.93,.15,.42,.71,1,0,.21,.5,.785,.21)
X<-cbind(x1,x2)
yobs<-x1^2+x2^2
# }
# NOT RUN {
#The CGP model
mod<-CGP(X,yobs,nugget_l=0.001)
plotCGP(mod)
# }