Procedure MatrixRegenerateRow(MP, row)

MatrixRegenerateRow

The procedure MatrixRegenerateRow regenerates the coefficients of a row according to the definition of its associated symbolic constraint in the model.

MatrixRegenerateRow(
     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 name in the model.

Return Value

The procedure returns 1 on success, or 0 otherwise.

Note

• If the row does not exist yet, it will be automatically added to the matrix before generating its coefficients.

• Before regenerating the row, the procedure first removes all existing matrix coefficients.

• This procedure will automatically add columns that are not in the matrix.

• The row type and the right-hand-side value (and, if the row type is 'ranged', the left-hand-side value) are set according to the constraint definition.

• 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 procedures MatrixAddRow, MatrixModifyCoefficient, MatrixModifyLeftHandSide, MatrixModifyRightHandSide, MatrixModifyRowType. Matrix manipulation routines are discussed in more detail in Implementing Advanced Algorithms for Mathematical Programs of the Language Reference.