On Jan 15, 2008 9:46 AM, livia <[EMAIL PROTECTED]> wrote:
>
> Hello everyone,
>
> I would like to optimize the function "fqp" as following:
>
> a=c(0.2,0.3,0.4)
> vcov=matrix(c(1,2,3,3,2,2,2,3,1),3,3)
> c=2
> fqp <- function(b) {t(b)%*%a-0.5*c*((t(b)%*%vcov)%*%b)}
>
> with constraints like ((t(b)%*%vcov)%*%b) <= 0.5
>
> Is there a function of doing it? Many thanks.Try the quadprog package. ______________________________________________ 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.
