[R] Optimization Question

2009-06-11 Thread Brecknock, Peter
Hi All Apologies if this is not the correct list for this question. The Rglpk package offers the following example in its documentation library(Rglpk) ## Simple mixed integer linear program. ## maximize: 3 x_1 + 1 x_2 + 3 x_3 ## subject to: -1 x_1 + 2 x_2 + x_3 <= 4 ## 4 x_2 - 3 x_3 <= 2 ## x

Re: [R] Optimization Question

2009-06-12 Thread Paul Smith
On Thu, Jun 11, 2009 at 9:56 PM, Brecknock, Peter wrote: > Apologies if this is not the correct list for this question. > > The Rglpk package offers the following example in its documentation > > library(Rglpk) > ## Simple mixed integer linear program. > ## maximize: 3 x_1 + 1 x_2 + 3 x_3 > ## subj

Re: [R] Optimization Question

2009-06-12 Thread spencerg
The "1L", etc., forces the number to be integer: > is.integer(1) [1] FALSE > is.integer(1L) [1] TRUE Hope this helps. Spencer Paul Smith wrote: On Thu, Jun 11, 2009 at 9:56 PM, Brecknock, Peter wrote: Apologies if this is not the correct list for this question. The Rglpk pac