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getbstat

getbstat


Purpose
Get the status of a variable or constraint in a basis.
Synopsis
function getbstat(b:basis,v:mpvar):integer
function getbstat(b:basis,c:linctr):integer
Arguments
b 
A basis
v 
A decision variable
c 
A linear constraint
Return value
Basis status. For a variable:
-1 
Variable is not in the basis
0 
Variable is non-basic at lower bound, or superbasic at zero if the variable has no lower bound
1 
Variable is basic
2 
Variable is non-basic at upper bound
3 
Variable is super-basic
For a constraint:
-1 
Constraint is not in the basis
0 
Slack, surplus or artificial is non-basic at lower bound
1 
Slack, surplus or artificial is basic
2 
Slack or surplus is non-basic at upper bound
3 
Slack or surplus is super-basic
Related topics
Module