[R] Help in Optimization of a function

Rui Barradas ruipbarradas at sapo.pt
Sun Jul 8 12:19:11 CEST 2012


You don't need an optimzation routine to know that the maximum of this 
function is +Inf. It's attained at z = 0+ (when z converges to zero by 
positive values).

This breaks the R function optim(), by the way. It

" needs finite values of 'fn' "

Hope this helps,

Rui Barradas

Em 08-07-2012 10:15, Raghuraman Ramachandran escreveu:
> guRus!
> I have a function f = exp(x^2-y+(1/z))
> Also, x can take values from 1 to 37, y from 2 to 20 and Z from -13 to 51.
> How can I find the maximum of f using any of the optimization functions
> please?
> Is there a way to store the possible values of x, y and Z in a single
> variable like in a List or in a multi-dimensional array?
> Thanks for your help
> Raghu
> 	[[alternative HTML version deleted]]
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