[R] Problem on minima

Kenneth Cabrera krcabrer at epm.net.co
Sun Sep 29 14:08:35 CEST 2002


Have you think in use genetic algoritms? (gafit package)

E. D. Isaia wrote:

>Dear List, I wonder if there is a package that may help me in finding mimina of a specified function in 2 or more real variables.
>Until now I used the optim() function and/or the nlr() one, passing the function g() of interest and the initial guess for the parameters to be optimized over, but it is rather tricky as in my case the function g() may have one absolute minimum and several relative minima which I'm interested in.
>
>-- 
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>~ Ennio D. Isaia
>~ Dep. of Statistics & Mathematics, University of Torino
>~ Piazza Arbarello, 8 - 10128 Torino (Italy)
>~ Phone: +39 011 670 62 51 ~~ Fax: +39 011 670 62 39
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-- 
Kenneth Roy Cabrera Torres
Celular +57 (315) 405 9339



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