Have you tried the "maxLik" package? If that is not adequate, you can check "CRAN Task View: Optimization and Mathematical Programming" (http://cran.fhcrc.org/web/views/Optimization.html). Or try the new "RSiteSearch.function" in the "RSiteSearch" package. If none of these adequate, please provide another post with more detail about what you've tried and why it does not seem adequate, preferably providing provide commented, minimal, self-contained, reproducible code, as suggeste in the posting guide "http://www.R-project.org/posting-guide.html";.

Hope this helps. Spencer

Michael wrote:
Hi all,

Could anybody point me to a good/robust numerical optimization program
to use in R?

I am doing some MLE fitting. Thanks!

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