[R] optimizing function over x,y

Hello all, I would like to maximize or minimize a given math function over a specific set of values. I was checking out Wolfram Alpha (http://www70.wolframalpha.com/) and it can do simple optimization problems in math, such as maximize 15*x - x**2 over 0 to 15

Re: [R] optimizing function over x,y

, Division of Geriatric Medicine and Gerontology School of Medicine Johns Hopkins University Ph. (410) 502-2619 email: rvarad...@jhmi.edu - Original Message - From: Esmail esmail...@gmail.com Date: Saturday, May 23, 2009 10:01 am Subject: [R] optimizing function over x,y To: R mailing list r-help

Re: [R] optimizing function over x,y

Ravi Varadhan wrote: Look at nlminb() or optim(), in particular the option `method = L-BFGS-B' or the function spg() in BB package. With these you can optimize over any number of variables. Ravi. Hi Ravi, Thanks for the leads, I'll take a look, though right now I have run into problems