laist wrote:
Hi,
I would like to know if you could help me... I need to restrict a parameter
in a problem of optimization but I don't know how to do it.
function(s){
c<-s[1]
a1<-s[2]
a2<-s[2]
return(-sum())
}
optim(...)
In fact I need to know how to specify 0<=a1<=1. I've tried but without
success
In optim "L-BFGS-B" is a method that allows for box constraints. See its
help page or provide a full example that we can use in order to give an
example with your data / function different from those in ?optim.
Uwe Ligges
Thank you
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