Unequal constraints
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limeng12 commented
Hi,
I'm experiencing the following problems when using this software.
Error in lpsymphony_solve_LP(obj = f.obj, mat = f.con, dir = f.dir, rhs = f.rhs, : Argument 'dir' must be one of '<', '<=', '>', '>=', or '=='.
But the help document showed that this software supports unequal operation !=.
Arguments |
obj | a vector with the objective coefficients
mat | a vector or a matrix of the constraint coefficients
dir | a character vector with the directions of the constraints. Each element must be one of "<", "<=", ">", ">=", "==" or "!=".
Meng