I am trying to use Gurobi’s MVar class. Answer Call before accessing lb.
Tag: gurobi
Gurobi – Is there a way to access the lazy constraints pool?
I have searched through all Gurobi’s PDF documentation and could not find what I am searching. I would like to know if there is a way to access the lazy constraints pool in Gurobi during the search? In a MIP_NODE, during a callback at an integer node, GRB_CB_MIPSOL, I need to access all the previously generated lazy constraints and apply
How to compare a list of routes with a dictionary of costs between arcs?
Hello to the whole community, I have a question about creating an automatic method (function or loop+) to declare a route cost variable, which involves the sum of each of the c_i,j arcs. Example: I would like to get help to reach a RouteCost variable that compares the list with the dictionary and will add each of the arcs it
Absurd solution using gurobi python in regression
So I am new to gurobi and I decided to start working with it on a well known problem as regression. I found this official notebook, where an L0 penalized regression model was solved and I took just the part of the regression model out of it. However, when I solve this problem in gurobi, I get a really strange
Can’t i use the variable in a formula?
I’m coding a math model using gurobiy, but an error occurs. the error is ‘Var’ object cannot be interpreted as an integer. i tried to solve it using search, but I don’t have enough information. spi: required space of block i cft: area of factory f at t time s_Time : Start time p_Time : processing time c_Time : completion
Python passing callback function in a class
I have to try to move from the non-class-based coding style into class-based coding style, but facing an issue. The optimize() function takes a callback function mycallback(). The code works perfectly fine in Non-class-based method, but when I moved it to class-based method, I got an error “mycallback() takes exactly 3 arguments (1 given)”. What is the right way to