Hello - and sorry for a possibly stupid question, I'm just starting to learn rgenoud.
I am defining a function with 5 parameters (p1, p2, p3, p4a, and p4b) and then want to optimize it using genoud. But I am doing something wrong. Before genoud is even able to run it says: "Error in p2 + 1.2 : 'p2' is missing". I assume I did not specify it right. My code is below. The task is: I want to find those values of p1, p2, p3, p4a and p4b at which the function f1 is at its maximum. At the same time, I want the value of each of those 5 parameters to be between 0 and 1000. Thanks a lot for your advice! library(rgenoud) f1 = function(p1,p2,p3,p4b,p4a) { y = 2 + 1.5*p1 + 0.3*(p2+1.2+0.6*p4a)-1.2*p3 + 0.9*p4b return(y) } f1(p1=1,p2=2,p3=4,p4b=4,p4a=6) # seems to be working npredictors=5 genoud(f1,nvars=npredictors,max=TRUE,pop.size=1000,max.generations=100,wait.generations=10, hard.generation.limit=TRUE,starting.values=rep(500,npredictors), Domains=matrix(rep(c(0,1000),npredictors),ncol=2,byrow=T),boundary.enforcement=2) -- Dimitri Liakhovitski Ninah Consulting ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.