>I am attempting to solve a linear program using the mip function, and I

>don't know how to get binary operators to function. Here is my

>objective function.

>

>z = 6x1 + 5x2 + 7x3 -190y1 - 150y2 - 110y3

>

>All of the y variables are binary variables such that

>

>yi = 0 if xi = 0

>yi = 1 if xi > 0

>

>I am not sure how to implement this, and any help would be appreciated.

>I am familiar with the mip function and have used it many times before.

Have you looked at the glpk function of Octave?

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