Variables :: SAS/OR(R) 13.1 User's Guide: Mathematical Programming Examples

Table 24.5 shows the variables that are used in this example.

Table 24.5: Variables

Variable Name	Interpretation
`P1[class,option]`	1 if price option is chosen for class in period 1; 0 otherwise
`P2[i,class,option]`	1 if price option is chosen for class in period 2 as a result of scenario $i$ in period 1; 0 otherwise
`P3[i,j,class,option]`	1 if price option is chosen for class in period 3 as a result of scenarios $i$ and $j$ in periods 1 and 2, respectively; 0 otherwise
`S1[i,class,option]`	Sales for class in period 1 under price option and scenario $i$
`S2[i,j,class,option]`	Sales for class in period 2 under price option and scenarios $i$ and $j$ in periods 1 and 2, respectively
`S3[i,j,k,class,option]`	Sales for class in period 3 under price option and scenarios $i,j,k$ in periods 1, 2, 3, respectively
`R1[i,class,option]`	Revenue for class in period 1 under price option and scenario $i$
`R2[i,j,class,option]`	Revenue for class in period 2 under price option and scenarios $i$ and $j$ in periods 1 and 2, respectively
`R3[i,j,k,class,option]`	Revenue for class in period 3 under price option and scenarios $i,j,k$ in periods 1, 2, 3, respectively
`TransferFrom[i,j,k,class]`	Number of seats transferred from class under scenarios $i,j,k$ in periods 1, 2, 3, respectively
`TransferTo[i,j,k,class]`	Number of seats transferred to class under scenarios $i,j,k$ in periods 1, 2, 3, respectively
`NumPlanes`	Number of planes to use