R help - Jul 2013 - optimize integer function parameters

Hi

I have "observations" obs <- (11455, 11536, 11582, 11825, 11900, 
...)

and a simulation function f(A,B,C,D,E,F), so sim <- f(A,B,C,D,E,F)

e.g. sim = c(11464, 11554, 11603, 11831, 11907, ...)

now I would like to fit A,B,C,D,E,F such that "obs" and f(A,B,C,D,E,F)
match as well as possible. A,..,F should be integers and have bounds.

How would you solve this problem without bruteforce in an acceptable time?

thx
Christof

On Tue, 23 Jul 2013, Christof Klu? <ckluss at email.uni-kiel.de> writes:
>
> I have "observations" obs <- (11455, 11536, 11582, 11825,
11900,  ...)
>
> and a simulation function f(A,B,C,D,E,F), so sim <- f(A,B,C,D,E,F)
>
> e.g. sim = c(11464, 11554, 11603, 11831, 11907, ...)
>
> now I would like to fit A,B,C,D,E,F such that "obs" and
f(A,B,C,D,E,F)
> match as well as possible. A,..,F should be integers and have bounds.
>
> How would you solve this problem without bruteforce in an acceptable time?
>

That depends on what your "simulation function" looks like.  Could you
post a (small) self-contained example?


-- 
Enrico Schumann
Lucerne, Switzerland
http://enricoschumann.net