Originally posted by: kendong

Can we set the Boolean variable as following in C# with cplex:

When the value is between 0.99995 and 1.0 during branching (for example), we treat is as 1 directly.  The same as we treat the variable as 0, if the value of it is between 0 and 0.0005.

Thanks so much.

You can use a BranchCallback to change the bounds of a variable.

With a branch callback you can either force CPLEX to branch on a certain variable (in your case setting it to 0 in one branch and setting it to 1 in the other branch) or even fix the variable (by specifying identical bounds) for all nodes in the subtree rooted at the current node.