Problems with the sampl ( tree ) formulation

[Sebastián Eduardo Arpón Barba]

Im trying to build a tree... its a really simple tree, but I cant build it. 

3 decisions stages in every stage there are 2 chances (up and down) every chance have a 50 % of probability.

How can I build it?

[Christian Valente]

Dear Sebastian,

I am afraid the current version of SAMPL only supports two-stage recourse problem;

you can declare the tree for such problems as:

tree myTree := twostage;