Hello, > 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 should be ok, in > GLPK cannot find an optimal solution. I think it #8217;s to do with > the absolute value constraints that I am using. I wanted to know if > anyone else was having a similar issue, and how it was fixed. If your model is LP, you can use glpsol, the stand-alone glpk lp/mip solver which supports the modeling language GNU MathProg, a subset of AMPL. All questions concerning the R version of glpk should probably be addressed to its author(s), because that development is not part of the glpk project. Andrew Makhorin _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
