TOMLAB OPTIMIZATION ENVIRONMENT: tp2np

   

tp2np

Purpose

For converting transportation LP to network programming formulation

Syntax

   Net = tp2np(s, d, C)

Description

Convert Transportation LP to Linear Programming formulation using supply, demand and distance matrix

   m = M + N; n = M * N

Input Parameters

   s      Supply, N by 1
   d      Demand, M by 1
   C      Cost (Distance) matrix, M by N

Output Parameters

         
 Net  Structure storing network in Forward-Reverse Star Representation

Fields used in Net:

   P:      Pointer vector to start of each node in Z-matrix
   Z:      Arcs outgoing from the nodes in increasing order
           Z(:,1) Tail. Z(:,2) Head.
   c:      Costs related to the arcs in the Z-matrix
   T:      Trace vector points to Z with sorting order HEAD.
   R:      Pointer vector in T vector for each node.
   u:      upper bounds on flow if U input or infinity 

  tp2lp