Nothing
plot.pgbart = function(
x,
plquants=c(.05,.95), cols =c('blue','black'),
...
)
{
if('sigma' %in% names(x)) {
par(mfrow=c(1,2))
plot(c(x$first.sigma,x$sigma),col=rep(c('red','black'),
c(length(x$first.sigma),length(x$sigma))),ylab='sigma',...)
} else {
par(mfrow=c(1,1))
}
if('sigma' %in% names(x)) {
ql <- apply(x$yhat.train,2,quantile,probs=plquants[1])
qm <- apply(x$yhat.train,2,quantile,probs=.5)
qu <- apply(x$yhat.train,2,quantile,probs=plquants[2])
plot(x$y,qm,ylim=range(ql,qu),xlab='y',ylab=
'posterior interval for E(Y|x)',...)
for (i in 1:length(qm))
lines(rep(x$y[i],2),c(ql[i],qu[i]),col=cols[1])
abline(0,1,lty=2,col=cols[2])
} else {
pdrs = pnorm(x$yhat.train) #draws of p(Y=1 | x)
ql <- apply(pdrs,2,quantile,probs=plquants[1])
qm <- apply(pdrs,2,quantile,probs=.5)
qu <- apply(pdrs,2,quantile,probs=plquants[2])
plot(qm,qm,ylim=range(ql,qu),xlab='meadian of p',ylab=
'posterior interval for P(Y=1|x)',...)
for (i in 1:length(qm))
lines(rep(qm[i],2),c(ql[i],qu[i]),col=cols[1])
abline(0,1,lty=2,col=cols[2])
}
}
plot.pdpgbart <- function(
x,
xind = seq_len(length(x$fd)),
plquants = c(0.05, 0.95), cols = c('black','blue'),
...
)
{
rgy = range(x$fd)
for(i in xind) {
tsum = apply(x$fd[[i]],2,quantile,probs=c(plquants[1],.5,plquants[2]))
plot(range(x$levs[[i]]),rgy,type='n',xlab=x$xlbs[i],ylab='partial-dependence',...)
lines(x$levs[[i]],tsum[2,],col=cols[1],type='b')
lines(x$levs[[i]],tsum[1,],col=cols[2],type='b')
lines(x$levs[[i]],tsum[3,],col=cols[2],type='b')
}
}
plot.pd2pgbart <- function(
x,
plquants = c(0.05, 0.95), contour.color='white',
justmedian = TRUE,
...
)
{
pdquants = apply(x$fd,2,quantile,probs=c(plquants[1],.5,plquants[2]))
qq <- vector('list',3)
for (i in 1:3)
qq[[i]] <- matrix(pdquants[i,],nrow=length(x$levs[[1]]))
if(justmedian) {
zlim = range(qq[[2]])
vind = c(2)
} else {
par(mfrow=c(1,3))
zlim = range(qq)
vind = 1:3
}
for (i in vind) {
image(x=x$levs[[1]],y=x$levs[[2]],qq[[i]],zlim=zlim,
xlab=x$xlbs[1],ylab=x$xlbs[2],...)
contour(x=x$levs[[1]],y=x$levs[[2]],qq[[i]],zlim=zlim,
,add=TRUE,method='edge',col=contour.color)
title(main=c('Lower quantile','Median','Upper quantile')[i])
}
}
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