[R] multiple return values and optimization

Gabor Grothendieck ggrothendieck at gmail.com
Sat Jun 10 03:19:00 CEST 2006

optimize will preserve attributes so try this:

f <- function(x) structure(x^2, cubed = x^3)
optimize(f, c(-1, 1))

On 6/9/06, paul sorenson <sourceforge at metrak.com> wrote:
> I have a function (masheff) which returns a value which I can optimize
> no problem, eg:
> optimize(masheff, c(15,30), maximum=TRUE, m_gd=5.13, v_tot=41, e_c=1.0)
> I would like masheff() to return multiple values say as a list with
> named elements like so:
> v = masheff(...)
> v$eff
> v$extract
> etc
> Is there a simple way to do this in an optimize context or would I need
> to set some global variables and inspect them afterwards?
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