R help - Nov 2013 - Is there a way to optimize a function that has the dot-dot-dot (...) argument using optim()

Hi everyone,

If the function I am trying to optimize have the ... argument, how to pass
it to optim()?

For example, we want to minimize this very simple function:

foo <- function(a, ...) {
  var=list(...)
  (a-1)^2+do.call(sum,var)
}

Although the ... in this function doesn't make any difference.

Thanks,

Nan

	[[alternative HTML version deleted]]

Hello,

?optim has a dots argument, so just pass whatever you want after 'gr'. 
Something like the following.

optim(-3, foo, NULL, 1, 2)

Hope this helps,

Rui Barradas

Em 21-11-2013 22:05, Nan Wang escreveu:
> Hi everyone,
>
> If the function I am trying to optimize have the ... argument, how to pass
> it to optim()?
>
> For example, we want to minimize this very simple function:
>
> foo <- function(a, ...) {
>    var=list(...)
>    (a-1)^2+do.call(sum,var)
> }
>
> Although the ... in this function doesn't make any difference.
>
> Thanks,
>
> Nan
>
> 	[[alternative HTML version deleted]]
>
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