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# problem.chgobj

Purpose
This subroutine is deprecated and will be removed in a future release. Use problem.chgObj instead.
Change the objective function coefficients.
Synopsis
`problem.chgobj(colind, objcoef)`
Arguments

colind | 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.
objcoef | 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.
Related topics
problem.chgCoef, problem.chgMCoef, problem.chgMQObj, problem.chgQObj, problem.getObj, problem.chgObj.
Parent Topic Deprecated functionality

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