Procedure MatrixDeactivateRow(MP, row)

MatrixDeactivateRow

The procedure MatrixDeactivateRow deactivates a row in the matrix. The row will be ignored by the solver until it is activated again.

MatrixDeactivateRow(
     MP,             ! (input) a mathematical program
     row             ! (input) a scalar value
     )

Arguments

MP

A mathematical program that was previously solved. The mathematical program should be a linear or mixed-integer linear programming model.

row

A scalar reference to an existing row in the matrix; this can not be the objective row.

Return Value

The procedure returns 1 on success, or 0 otherwise.

Note

  • Deactivating a row results in changing the type of that row into '<' and the right hand side value into INF (the row coefficients do not change).

  • As of AIMMS release 3.5, the matrix manipulation procedures have become deprecated. New projects should use the GMP library instead. Please refer to Table 5 for a mapping of the matrix manipulation procedures to corresponding GMP procedures.

See also

The procedure MatrixActivateRow. Matrix manipulation routines are discussed in more detail in Implementing Advanced Algorithms for Mathematical Programs of the Language Reference.