Optimize a function with Discrete inputs
combn() gives ordered combinations, while expand.grid() gives all combinations. I'd give worked code but this hints at homework to me. Sarah
On Wed, Aug 1, 2012 at 10:23 AM, Eik Vettorazzi <E.Vettorazzi at uke.de> wrote:
Hi, not sure if that is what you are looking for, but have a look at cmb<-t(combn(c(0,3,5,8),2)) #get all pairs of combinations cbind(cmb,apply(cmb,1,diff)) #for each pair, get the difference cheers Am 01.08.2012 12:29, schrieb loyolite270:
Hi
I need to optimize the below function:
a=function(x){
A=x[1]
B=x[2]
C=B-A
return(C)
}
I need to optimize the above function such that x can be any combination of
these number (0,3,5,8) of vector length 2
(i.e) x can be (3,0), (5,0), (8,0), (3,5), (3,8), (5,8), ...... etc
can someone please help me solve this problem ?
Sarah Goslee http://www.functionaldiversity.org