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spcreatetree

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Purpose

It is used for creating the structure for scenario tree without setting the values of random elements, or the proabilities in the tree.

Synopsis

spcreatetree(sb: integer)

spcreatetree(br: array(range) of integer)

spcreatetree(nd: array(range,range) of integer)

Arguments

sb	number of branches from each node in a symmetic scenario tree
br	number of branches from nodes in each stage of a scenario tree
nd	node number of node in each scenario at each stage

Example

Ex 1:

spcreatetree(2) !create binary tree
   

Ex 2:

branches:=[2,3]
spcreatetree(branches)  ! create a 3-stage tree with 2 branches from
                        ! first stage node, 
                        ! and 3 branches from second stage nodes.
   

Ex 3:

NodeNum:=[
1,1,1,
1,1,2, 
1,2,3, 
1,2,4];
spcreatetree(NodeNum)   ! create a 3-stage binary tree explictly	
   

Further information

1. All sprands must have been associated with stages before creating scenario tree.

2. Tree can be generated by setting values of sprands in the tree and probabilities of visting nodes or scenarios, followed by calling spgentree().

Related topics

spsetprobscen, spsetprobcond, spsetprobcondatnode, spsetrand, spsetrandatnode, spaddchildren, spgentree, spprinttree

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