Vartanian, Ara indiana.edu> writes:
> All,
>
> I am looking for an optimization library that does well on something as
> chaotic as the Schwefel function:
>
> schwefel <- function(x) sum(-x * sin(sqrt(abs(x
>
> With these guys, not much luck:
>
> > optim(c(1,1), schwefel)$value
> [1] -7.
All,
I am looking for an optimization library that does well on something as chaotic
as the Schwefel function:
schwefel <- function(x) sum(-x * sin(sqrt(abs(x
With these guys, not much luck:
> optim(c(1,1), schwefel)$value
[1] -7.890603
> optim(c(1,1), schwefel, method="SANN", control=list
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