The SetProbabilities command sets the transition probabilities for node j at level i of the tree T. The probabilities in p should correspond to the descendants of the node (i, j); see Finance[GetDescendants] and Finance[GetProbabilities] for more details.

$\mathrm{with}\left(\mathrm{Finance}\right)\:$

$T≔\mathrm{TrinomialTree}\left(5\,⟨1\,2\,3\,4\,5\,6\,7⟩\right)$

$T≔\mathbf{module}\left(\right)\mathbf{end\; module}$

$\mathrm{GetProbabilities}\left(T\,3\,3\right)$

$\left[0.3333333333\,0.3333333334\,0.3333333333\right]$

$\mathrm{SetProbabilities}\left(T\,3\,3\,\left[0.3\,0.5\,0.2\right]\right)$

$\mathrm{GetProbabilities}\left(T\,3\,3\right)$

$\left[0.3000000000\,0.5000000000\,0.2000000000\right]$

The Finance[SetProbabilities] command was introduced in Maple 15.

For more information on Maple 15 changes, see Updates in Maple 15.