Hi all!

I have a little question concerning quadprog. To make it simple I'll start by 
stating the problem:

I want to minimize 

                h(d,delta)=0.5d^T B d +nabla(f(x))^T d +rho*delta^2

With respect to d\in R^n and delta \in R. I obviously have constraints 
(depending on both d and delta). 

Solve.QP does give me a good result for d but I cannot obtain anything for 
delta. Simce dim(Dmat)=n and sol<-rep(0,n) it isn't particularly surprising.
To set a diagonal matrix

                (B      0       )
        Amat=   (0      rho     )

Is a crapy idea. Does anyone have an idea? 

Yours,

Serge

"Beatus qui prodest quibus potest"  -   (Lycklig är den som hjälper andra) 

Serge de Gosson de Varennes
Försäkringskassan 
Swedish Social Insurance Agency
+46-76 11 40 799
[EMAIL PROTECTED]





        [[alternative HTML version deleted]]

______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel

Reply via email to