[R] 1 dimensional optimization with local minima

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Re: [R] 1 dimensional optimization with local minima

_ Ravi Varadhan, Ph.D. Assistant Professor, Division of Geriatric Medicine and Gerontology School of Medicine Johns Hopkins University Ph. (410) 502-2619 email: rvarad...@jhmi.edu - Original Message - From: Jeroen Ooms Date: Tuesday, November 3, 2009

[R] 1 dimensional optimization with local minima

I am using numerical optimization to fit a 1 parameter model, in which the input parameter is bounded. I am currently using optimize(), however, the problem turns out to have local minima, and optimize does not always seem to find the global minimum. I could to write a wrapping function that tries