Initializing help system before first use

# 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
savebasis, setbstat, resetbasis.
Module
mmxprs
Parent Topic Procedures and functions

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