Mert Eroglu

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Activity overview

Latest activity by Mert Eroglu
  • Mert Eroglu created a post,

    Updating Lists Under Conditional Statements

    Answered

    Hello,  I know that that if function is not using that way in de code snipet below. However i created a binary Z varible to satisfy newWarehouse[year] == 1. In that way i got: m.addConstr((z[i,j,ye...

  • Mert Eroglu commented,

    I was getting the error despite calling optimize(), i guess there was a problem with my constraints. But i used another approach for my problem, for now. Thanks for your support.

  • Mert Eroglu commented,

    Hello, thanks for your fast support. I implemented your codes into mine and printed:  "No feasible solution available". Therefore why .x is not being used in my code, result i didn't understand tha...

  • Mert Eroglu created a post,

    Unable to retrieve attribute 'x' error

    Answered

    Hello,  Below, you can find my code's rows. However, i keep getting unable to retrieve 'x' error until i comment out the rows involve '.x' element. Both x and z variables has the same range and ele...

  • Mert Eroglu commented,

    Oh OK, i thought adding such constraint would delete the - sign on the 0.0's but it's the same thing. Thanks for your support.

  • Mert Eroglu commented,

    for j in range(n): for i in range(m): model.addConstr(y_2022[j,i] >= 0.5 + eps - M*(1-B))        model.addConstr(y_2022[j,i] <= 0.5 + M*(B)) model.addConstr((B==1) >> (y_2022[j,i] ...

  • Mert Eroglu commented,

    Yeah, I set IntFeasTol to 1e-9 and IntegralityFocus to 1, but it didn't changed the outcome. Thanks for the fast reply.

  • Mert Eroglu created a post,

    Binary Varibales get negative -0.0 values

    Answered

    Hello,  How is it possible to get -0.0 when they are binary variables? Thanks.