let's start by defining x and y matching the properties of the points in
the picture
<<*>>=
x<-c(1,2,4,5,9,3,7,6); y<-c(10,8,5,3,2,9,4,7)
plot(x,y,pch=letters[1:8])
@
along each dimension we have to compare the coordinates of the points:
<<*>>=
outer(x,x,"<")
@
we get a logical matrix:
output-sta
I would like to make a ranking operation more efficient if possible.
The goal is to rank a set of points representing objective
function values such that points which are "dominated" by no
others have rank 1, those which are dominated by one other point
have rank 2, etc. In the example with tw