Re: [R] Advice wanted on using optim with both continuous and discrete par arguments...

2010-03-01 Thread Jeffrey Racine
vi 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: Uwe Ligges > Date: Monday,

Re: [R] Advice wanted on using optim with both continuous and discrete par arguments...

2010-03-01 Thread Ravi Varadhan
ic Medicine and Gerontology School of Medicine Johns Hopkins University Ph. (410) 502-2619 email: rvarad...@jhmi.edu - Original Message - From: Ravi Varadhan Date: Monday, March 1, 2010 2:27 pm Subject: Re: [R] Advice wanted on using optim with both continuous and discrete par arguments... To:

Re: [R] Advice wanted on using optim with both continuous and discrete par arguments...

2010-03-01 Thread Ravi Varadhan
___ 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: Uwe Ligges Date: Monday, March 1, 2010 12:59 pm Subject: Re: [R] Advice wanted

Re: [R] Advice wanted on using optim with both continuous and discrete par arguments...

2010-03-01 Thread Uwe Ligges
On 01.03.2010 18:34, Jeffrey Racine wrote: Thanks Uwe. I appreciate your feedback.. in the paragraph in my email beginning "The problem..." Whoops, apologies, I was too quickly reading your message, apparently. CCing R-help to add: There is the Optimization Task View on CRAN: http://cran.r

Re: [R] Advice wanted on using optim with both continuous and discrete par arguments...

2010-03-01 Thread Uwe Ligges
On 01.03.2010 16:34, Jeffrey Racine wrote: Dear R users, I have a problem for which my objective function depends on both discrete and continuous arguments. The problem is that the number of combinations for the (multivariate) discrete arguments can become overwhelming (when it is univariat

[R] Advice wanted on using optim with both continuous and discrete par arguments...

2010-03-01 Thread Jeffrey Racine
Dear R users, I have a problem for which my objective function depends on both discrete and continuous arguments. The problem is that the number of combinations for the (multivariate) discrete arguments can become overwhelming (when it is univariate this is not an issue) hence search over the