Using gurobi package in R

Answered

José Brito

• March 09, 2022 21:08

I'm using the gurobi package in R to 
write an integer linear programming model. 
Before running the model, I need to set some 
variables with initial value. How to do this in R?

0

• 

  Maliheh Aramon

  Gurobi Staff

  • March 09, 2022 21:47

  Hi José 

  To set a MIP start vector in R, you need to use the start model argument. Assuming \(\mathbf{x}\) represent the MIP start vector and \(\texttt{model}\) is the Gurobi model, you can set the start vector as:

  model$start <- x

  Please note that you need to specify a value for each variable in the vector \(\mathbf{x}\). If there is no initial value for a given variable, you can set its start value to NA, which instructs the Gurobi Optimizer to try to fill in a value for that variable.

  Best regards,

  Maliheh

  0

Please sign in to leave a comment.