The NETFLOW Procedure |
The capacity and lower flow bound of an arc can be equal.
Negative arc capacities and lower flow bounds are permitted.
If both arc capacities and lower flow bounds
are negative, the lower flow bound must be at least as
negative as the capacity.
An arc (A,B) that has a negative flow of
units can be interpreted
as an arc that conveys
units of flow from node B to node A.
The upper and lower value bounds of a nonarc variable can be equal. Negative upper and lower bounds are permitted. If both are negative, the lower bound must be at least as negative as the upper bound.
Copyright © 2008 by SAS Institute Inc., Cary, NC, USA. All rights reserved.