Initializing help system before first use

XPRSgetcallbackpresolveredcosts

Purpose
Returns the reduced costs from the solution to the presolved problem associated with the current callback.
Topic areas
Solution, Callback
Synopsis
int XPRS_CC XPRSgetcallbackpresolveredcosts(XPRSprob prob, int *p_available, double djs[], int first, int last);
Arguments
prob 
The current problem.
p_available 
This variable will be set to 1 if a dual solution is available. May be NULL if not required.
djs 
Double array of length last-first+1 where the reduced costs of the variables will be returned. May be NULL if not required.
first 
First column whose reduced cost to return.
last 
Last column whose reduced cost to return.
Further information
1. Column indices should be in the range 0 to COLS- 1.
2. See XPRSgetcallbacksolution for a list of callbacks where this function can be called. Note that reduced costs are not available in all contexts where a primal solution is available.
Related topics
XPRSgetcallbackpresolvesolution, XPRSgetcallbackpresolveslacks, XPRSgetcallbackpresolveduals, XPRSgetcallbackredcosts, XPRSgetredcosts.

Parent Topic Console and Library Functions

© 2001-2025 Fair Isaac Corporation. All rights reserved. This documentation is the property of Fair Isaac Corporation (“FICO”). Receipt or possession of this documentation does not convey rights to disclose, reproduce, make derivative works, use, or allow others to use it except solely for internal evaluation purposes to determine whether to purchase a license to the software described in this documentation, or as otherwise set forth in a written software license agreement between you and FICO (or a FICO affiliate). Use of this documentation and the software described in it must conform strictly to the foregoing permitted uses, and no other use is permitted.