See Also
The OPF Dialog, All LP Basic Variables page displays the basic and non-basic variables associated with the final LP solution. This page is usually only of interest to users interested in the specifics of the LP solution. Right click anywhere in the display to copy a portion or all of the display to the Window's clipboard, or to print the results.
The display lists each of the LP variables, showing the following fields for each:
ID
Variable identifier.
Original Value
The initial value of the LP variable before OPF optimization.
Value
The final value of the LP variable after OPF optimization.
Delta Value
The difference between the original value field and the value field.
BasicVar
Shows the index of the basic variables in the LP basis. If the value is zero, the variable is non-basic.
NonBasicVar
Shows the index of the non-basic variable. If the value is zero, the variable is basic.
Cost(Down)
The cost associated with decreasing the LP variable. The field will also show if the variable is at its max or min limit.
Cost(Up)
The cost associated with increasing the LP variable. The field will also show if the variable is at its max or min limit.
Down Range
The available range to decrease the basic variable before a new constraint is hit.
Up Range
The available range to increase the basic variable before a new constraint is hit.
Reduced Cost Up
The cost reduction that would be experienced if an LP variable increases. If a constraint is at the limit, the field shows the change in cost of constraint enforcement.
Reduced Cost Down
The cost reduction that would be experienced if an LP variable decreases. If a constraint is at the limit, the field shows the change in cost of constraint enforcement.
At Breakpoint?
Yes, if the LP variable is at a break point.