Re: [R] Dynamic Programming in R

2006-01-20 Thread hadley wickham
> > there are undoubtedly still situations where R may require an unacceptably > large amount of memory overhead. Recursion is one, I > believe. > > One can avoid unacceptably large amount of memory overhead when doing > recursion in R: either by passing parameters "by reference" using package > re

Re: [R] Dynamic Programming in R

2006-01-20 Thread Arne.Muller
h Subject: [R] Dynamic Programming in R Hi R users, I am looking to numerically solve a dynamic program in the R environment. I was wondering if there were people out there who had expereinced success at using R for such applications. I'd rather continue in R than learn Mathlab. A concern t

Re: [R] Dynamic Programming in R

2006-01-20 Thread Jens Oehlschlägel
Gunter, > there are undoubtedly still situations where R may require an unacceptably large amount of memory overhead. Recursion is one, I believe. One can avoid unacceptably large amount of memory overhead when doing recursion in R: either by passing parameters "by reference" using package ref or

Re: [R] Dynamic Programming in R

2006-01-19 Thread Gabor Grothendieck
The lpSolve package can handle integer programming problems. Here is an example of using dynamic programming in R from first principles in another setting: http://tolstoy.newcastle.edu.au/R/help/06/01/18845.html On 1/19/06, Arnab mukherji <[EMAIL PROTECTED]> wrote: > Hi R users, > > I am looking

Re: [R] Dynamic Programming in R

2006-01-19 Thread François Pinard
[Arnab mukherji] >A concern that has been cited that may discourage R use for solving >dynamic programs is its memory handling abilities. For a dynamic programming problem defined over N steps, one usually needs a N*N matrix, so problems should be tractable for N being "not too big". In those

Re: [R] Dynamic Programming in R

2006-01-19 Thread Berton Gunter
[EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Arnab mukherji > Sent: Thursday, January 19, 2006 1:55 PM > To: r-help@stat.math.ethz.ch > Subject: [R] Dynamic Programming in R > > Hi R users, > > I am looking to numerically solve a dynamic program in the R >

[R] Dynamic Programming in R

2006-01-19 Thread Arnab mukherji
Hi R users, I am looking to numerically solve a dynamic program in the R environment. I was wondering if there were people out there who had expereinced success at using R for such applications. I'd rather continue in R than learn Mathlab. A concern that has been cited that may discourage R use