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Answered

Han Shih

• July 03, 2019 16:12

I am new to gurobi, I have a question regarding creating an array of variables.

Question regarding how to start index with1 instead 0?

For example in gurobi, x = model.addVars(2, 3) would create six variables, accessed as x[0,0], x[0,1], x[0,2], x[1,0], x[1,1], and x[1,2].

 

Is there any way to create an array of variables staring with index 1 instead 0?

 

For example, x = model.addVars(2, 3) would create six variables, accessed as x[1,1], x[1,2], x[1,3], x[2,1], x[2,2], and x[2,3]?

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• Official comment

  

  Simranjit Kaur

  Gurobi Staff

  • December 06, 2024 00:55

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum. Or why not try our AI Gurobot?.
• 

  Greg Glockner

  Gurobi Staff

  • July 03, 2019 18:55

  Sure: use ranges rather than numbers, for example:

  x = model.addVars(range(1,3), range(1,4), name="x")

   

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