XPRSchgobj

Purpose

Used to change the objective function coefficients.

Synopsis

int XPRS_CC XPRSchgobj(XPRSprob prob, int nels, const int mindex[], const double obj[]);

Arguments

prob	The current problem.
nels	Number of objective function coefficient elements to change.
mindex	Integer array of length nels containing the indices of the columns on which the range elements will change. An index of -1 indicates that the fixed part of the objective function on the right hand side should change.
obj	Double array of length nels giving the new objective function coefficient.

Example

Changing three coefficients of the objective function with XPRSchgobj :

mindex[0] = 0; mindex[1] = 2; mindex[2] = 5;
obj[0] = 25.0; obj[1] = 5.3; obj[2] = 0.0;
XPRSchgobj(prob,3,mindex,obj);

Further information

The value of the fixed part of the objective function can be obtained using the OBJRHS problem attribute.