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2011 May 11
1
Problem with constrained optimization with maxBFGS
Dear all,
I need to maximize the v:
v= D' W D
D is a column vector ( n , 1)
W is a given matrix (n, n)
subject to:
sum D= 1
(BTW, n is less than 300)
I´ve tried to use maxBFGS, as follows:
#####################################
objectiveFunction<-function(x)
{
return(t(D)%*%W%*%D)
}
Amat<-diag(nrow(D))
Amat<-rbind((rep(-1, nrow(D))), Amat)
bvec<-matrix( c(0), nrow(D)+1,