check.ev.cp: Check entering variable for complementary pivoting
Description
This function determines if the candidate non-basic variable can enter
the solution basis based on complementary pivoting.
Usage
check.ev.cp(tab, s)
Arguments
tab
A list of named components that are the augmented modified simplex tableau
s
An integer index for the candidate non-basic variable
Value
A boolean value TRUE or FALSE.
Details
This test only applies to decision variables and not to the deviation variables.
It determines if there is a basic decision variable in the current solution that is in the
same complementary class as the candidate decision variable. If there is, then the function
returns FALSE to indicate that the candidate variable cannot be added. Otherwise, the
function returns true.