problem.chgobj

Purpose

Change the objective function coefficients.

Synopsis

problem.chgobj(mindex, obj)

Arguments

mindex	Array containing the columns (i.e. xpress.var objects, indices, or names) 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	Array giving the new objective function coefficient.

Example

Changing three coefficients of the objective function with chgobj:

p.chgobj([x1,x2,x3,-1], [3.5, -2, 0, 224])

Further information

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