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[Help-glpk] Re: constraint matrix visualization
From: |
Andrew Makhorin |
Subject: |
[Help-glpk] Re: constraint matrix visualization |
Date: |
Mon, 15 Feb 2010 19:05:42 +0300 |
>> Do you mean viewing the matrix pattern? Or what?
> Yes, matrix pattern produced by running mathprog script / model.
The text file in glpk lp/mip format produced by 'glpsol --wglp'
among other things contains the constraint matrix in coordinate
format. The matrix can be easily extracted (for example, with a gawk
script) and converted to a data file for gnuplot or a similar utility.