# \donttest{
a<-0; b<-10;
#nx is number of X points (target) and ny is number of Y points (nontarget)
nx<-20; ny<-4; #try also nx<-40; ny<-10 or nx<-1000; ny<-10;
set.seed(1)
Xp<-runif(nx,a,b)
Yp<-runif(ny,a,b)
plotIntervals(Xp,Yp,xlab="",ylab="")
# }
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