search for: wenwen

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2010 Jul 23
1
(no subject)
...9991,0.0000001,0.0000001) dev<-rbind(diag(3),-diag(3),rep(-1,3)) bvec<-c(rep(0,3),rep(-1,4)) constrOptim(start,tm,NULL,ui=dev,ci=bvec,control=list(maxit=10000)) Am i missing something obviously that cause the problem or there is some bugs in constrOptim. Could you please help me out Cheers Wenwen _________________________________________________________________ Hotmail: Free, trusted and rich email service. [[alternative HTML version deleted]]
2010 Jul 26
1
After writing data in MMF using SEXP structure, can i reference in R?
...iag(3), rep(-1, 3)) > bvec<-c(rep(0, 3), rep(-1, 4)) > constrOptim(start, tm, NULL, ui=dev, ci=bvec, control=list(maxit=10000)) > > Am i missing something obviously that cause the problem or there is some bugs in constrOptim. Could you please help me out Wenwen, I believe that the reason why constrOptim behaves as described is related to the fact that (p1, p2, p3) = (1, 0, 0) is a stationary point and you use it as a starting point. Try a different starting point. If the objective is to maximize, then you should use the follo...