set_var_branchSpecifies, for the specified variable, which branch to take first in branch-and-bound algorithm. unsigned char set_var_branch(lprec *lp, int column, int branch_mode); Return Value set_var_branch returns TRUE (1) if the operation was successful. A return
value of FALSE (0) indicates an error. Parameters lp Pointer to previously created lp model. See return value of make_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI column The column number of the variable on which the mode must be set. It must be between 1 and the number of columns in the lp. branch_mode Specifies, for the specified variable, which branch to take first
in branch-and-bound algorithm.
Remarks The set_var_branch function specifies which branch to take first in
branch-and-bound algorithm. This can influence solving times considerably.
Depending on the model one rule can be best and for another model another rule. Example
See Also make_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI, get_var_branch, set_bb_floorfirst, get_bb_floorfirst, set_var_weights, get_var_priority |