Initializing help system before first use

repairweightedinfeasbounds

Purpose
An extended version of repairweightedinfeas that allows for bounding the level of relaxation allowed.
Synopsis
repairweightedinfeasbounds(
prob,
lepref,
gepref,
lbpref,
ubpref,
lerelax,
gerelax,
lbrelax,
ubrelax,
phase2,
delta,
flags
)
Arguments
prob 
The current problem.
lepref 
Array of size ROWS containing the preferences for relaxing the less or equal side of row.
gepref 
Array of size ROWS containing the preferences for relaxing the greater or equal side of a row.
lbpref 
Array of size COLS containing the preferences for relaxing lower bounds.
ubpref 
Array of size COLS containing preferences for relaxing upper bounds.
lerelax 
Array of size ROWS containing the upper bounds on the amount the less or equal side of a row can be relaxed.
gerelax 
Array of size ROWS containing the upper bounds on the amount the greater or equal side of a row can be relaxed.
lbrelax 
Array of size COLS containing the upper bounds on the amount the lower bounds can be relaxed.
ubrelax 
Array of size COLS containing the upper bounds on the amount the upper bounds can be relaxed.
phase2 
Controls the second phase of optimization:
o
use the objective sense of the original problem (default);
x
maximize the relaxed problem using the original objective;
f
skip optimization regarding the original objective;
n
minimize the relaxed problem using the original objective;
i
if the relaxation is infeasible, generate an irreducible infeasible subset for the analys of the problem;
a
if the relaxation is infeasible, generate all irreducible infeasible subsets for the analys of the problem.
delta 
The relaxation multiplier in the second phase -1.
flags 
Specifies flags to be passed to optimize.
Return value
The status after the relaxation:
0
relaxed optimum found;
1
relaxed problem is infeasible;
2
relaxed problem is unbounded;
3
solution of the relaxed problem regarding the original objective is nonoptimal;
4
error (when return code is nonzero);
5
numerical instability;
6
analysis of an infeasible relaxation was performed, but the relaxation is feasible.

Parent Topic R interface reference manual

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