Question: How do I extract a matrix from an LPSolve solution to produce a directed graph?



I'm missing something basic here, I'm sure, and would love to know how to proceed.

I have extracted solutions to a particular optimization problem using LPSolve and have obtained the binary solutions in matrix form, for matrices, say .. X and Y.

The solutions are obtained using the routine in the attached pdf; these outputs are sufficient for the basic problem.

Now, I wish to use directed graphs to illustrate the solutions, so I need to take the output matrices to draw the graphs. However, I cannot seem to find a way to do this. The solutions are given, in this case, by 'X' and 'Y'. 

Can anyone advise me on how to extract the matrices that can be used to draw the graphs using with(Graph Theory)?

Thanks in advance ...

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