R help - Sep 2014 - optim for maximization

Hi Sir,

 How to use the "optim" for maximization. I don't understand the
 control$fnscale option that is given on help page. It says if the
control$fnscale is negative, the function will be maximized.

 Thanks a lot

Padmanand
-- 
Padmanand Madhavan Nambiar
Alternate e-mail id : anand at uga.edu

(Patience pays)

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Padmanand Madhavan Nambiar <padmanandm <at> gmail.com> writes:
> 
> Hi Sir,
> 
>  How to use the "optim" for maximization. I don't understand
the
>  control$fnscale option that is given on help page. It says if the
> control$fnscale is negative, the function will be maximized.
> 
>  Thanks a lot
> 
> Padmanand
  If 'fn' is your objective function and 'par' is your starting
parameter vector, just

   optim(par=par,fn=fn,control=list(fnscale=-1))