getrcost getrcostatnode

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getrcost, getrcostatnode, getrcostinscen

Purpose

To obtain reduced cost of current stochastic problem after optimization.

Synopsis

getrcost(x: spvar): real

getrcostatnode(x: spvar, n: integer): real

getrcostinscen(x: spvar, s: integer): real

Arguments

x

stochastic variable

n

node number belonging to {1..N_t}, where x belongs to stage t, and N_t is number of nodes in stage t

s

scenario number belonging to {1..S}, where S is number of scenarios

Return value

reduced cost

Further information

1. This procedure should be called after optimization.

2. x cannot be a fixed variable, and it must participate in current optimization problem.

3. If x belongs to first stage then solution can be obtained by calling getsol.

4. For Expected Value problems solution can be obtained by calling getsol.

5. For an instance of the problem in a scenario or at a node in a scenario tree, solution can be obtained by calling getsol.

6. For a node based problem, solution can be obtained by calling getsolatnode.

7. For a scenario based problem, solution can be obtained by calling getsolinscen.

Related topics

getobjval, spgetobjconst, speval, minimize, minimize, getrcost, getrcostatnode, getrcostinscen, getdual, getdualatnode, getdualinscen, getslack, getslackatnode, getslackinscen

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x	stochastic variable
n	node number belonging to {1..N_t}, where x belongs to stage t, and N_t is number of nodes in stage t
s	scenario number belonging to {1..S}, where S is number of scenarios