Re: Glpk and R

2023-03-16 Thread Andrew Makhorin
On Wed, 2023-03-15 at 13:02 +, Ma, Lingjie wrote: > Hi,  Mr. Mao,  > > I have some quantile regression type portfolio optimization programs > which needs to call glpk package in R.  > > My question is how to call glpk with R? please see https://en.wikibooks.org/wiki/GLP

Re: [Help-glpk] glpk and R (using SWIG)

2010-06-22 Thread Nigel Galloway
To: Nigel Galloway nigel_gallo...@operamail.com Cc: help-glpk@gnu.org, eag...@consolidated.net Subject: Re: [Help-glpk] glpk and R (using SWIG) Date: Thu, 17 Jun 2010 22:17:04 +0200 Hello Nigel, the proposed iajaar.h looks promising. Unfortunately the referenced download site http

Re: [Help-glpk] glpk and R (using SWIG)

2010-06-22 Thread glpk xypron
. Best regards Xypron. Original-Nachricht Datum: Tue, 22 Jun 2010 14:55:40 +0100 Betreff: Re: [Help-glpk] glpk and R (using SWIG) The bad news is I think these examples are lost to history. The good news I have some better ones. Do you think the new wiki is a good place

Re: [Help-glpk] glpk and R (using SWIG)

2010-06-17 Thread Nigel Galloway
...@gmx.de To: Nigel Galloway nigel_gallo...@operamail.com Cc: Eagle, Ken eag...@consolidated.net, help-glpk@gnu.org Subject: Re: [Help-glpk] glpk and R (using SWIG) Date: Wed, 16 Jun 2010 00:36:54 +0200 Hello Nigel, the SWIG documentation on http://www.swig.org/Doc1.3/R.html says

Re: [Help-glpk] glpk and R (using SWIG)

2010-06-17 Thread glpk xypron
- From: Xypron xypron.g...@gmx.de To: Nigel Galloway nigel_gallo...@operamail.com Cc: Eagle, Ken eag...@consolidated.net, help-glpk@gnu.org Subject: Re: [Help-glpk] glpk and R (using SWIG) Date: Wed, 16 Jun 2010 00:36:54 +0200 Hello Nigel, the SWIG documentation on http

Re: [Help-glpk] glpk and R (using SWIG)

2010-06-15 Thread Xypron
wrote: The benefits (and drawbacks of SWIG) have been widely discussed. Using the swig interface files discussed it is possible to produce wrappers for all glpk api in R, and add a few usful features. ___ Help-glpk mailing list Help-glpk@gnu.org

Re: [Help-glpk] use GLPK on R on MAC os

2010-05-27 Thread Andrew Makhorin
 I am trying to use GLPK on R on MAC os. Can you please give me an example of how to use the GLPK for solving a linear program for a system at steady state, the R.H.S. is zero. If your model is LP or MIP, you can use glpsol, the stand-alone glpk lp/mip solver which supports the modeling

[Help-glpk] use GLPK on R on MAC os

2010-05-26 Thread Ray, Debjit
 I am trying to use GLPK on R on MAC os. Can you please give me an example of how to use the GLPK for solving a linear program for a system at steady state, the R.H.S. is zero. Thanking you. Debjit Ray I am trying to use GLPK on R on MAC os. Can you please give me

[Help-glpk] GLPK in R vs. AMPL

2010-05-25 Thread Chelaru, Laura
Hi,   I #8217;m running an LP through the R version of GLPK (http://cran.r-project.org/web/packages/glpk/index.html) and comparing the results with what I get out of AMPL (using the cplex solver, but that #8217;s probably not important). While in AMPL I get a reasonable answer so the model

Re: [Help-glpk] glpk and R (using SWIG)

2010-05-19 Thread Nigel Galloway
The benefits (and drawbacks of SWIG) have been widely discussed. Using the swig interface files discussed it is possible to produce wrappers for all glpk api in R, and add a few usful features. - Original Message - From: Eagle, Ken eag...@consolidated.net To: glpk xypron xypron.g

[Help-glpk] glpk and R

2010-05-18 Thread family
I have been working with glpk accessed from R. Originally I was using the “glpk” R package in order to use the various API routines, but eventually realized that this port is of glpk version 4.8 from 2006. To support my own work, I have updated the port to hook up with version 4.43. I

Re: [Help-glpk] glpk and R

2010-05-18 Thread glpk xypron
Hello Ken, have a look at ftp://cran.r-project.org/pub/R/contrib/main/Rglpk_0.3-5.tar.gz The changelog says UPDATED: Rglpk now includes GLPK version 4.42 Best regards Xypron Original-Nachricht Datum: Tue, 18 May 2010 10:00:08 -0500 Betreff: [Help-glpk] glpk and R I have

Re: [Help-glpk] glpk and R

2010-05-18 Thread Eagle, Ken
Hi Xypron. I don't think Rglpk accesses the broad glpk API; it can simply read problem description files and pass the specified problem to the glpk solver. Ken ___ Help-glpk mailing list Help-glpk@gnu.org