stage.list: (list) - stage structure associated with a particular variable.
num.category: (vector) - number of edges that unfolds from each position asscoiated with our target variable
num.situation.next: (numeric) - number of situations associated with the variable that follows our target variable in the event tree.
pos.next.level: (list) - position structure associated with the variable that follows our target variable in the event tree (see function PositionLevel)
Returns
list of lists - The first list level identifies a stage 'i' and the second list level identifies the positions associated with this stage 'i'.
See Also
PositionVector, PositionStage and PairwisePosition