Home → Troubleshooting → PrecisionTree → Policy Suggestion Skips Decisions behind a Reference Node

12.3. Policy Suggestion Skips Decisions behind a Reference Node

Applies to: PrecisionTree 7.x

My tree contains a reference node. When I run a Policy Suggestion, the Optimal Tree stops at the reference node, and the Decision Table includes only decision nodes to the left of the reference node.

This is a limitation of the Policy Suggestion analysis: at the present time, it doesn't follow the links from reference nodes. If the reference node links to a decision node, or the linked-to node has any decision nodes in its successors, those decision nodes won't appear in the outputs of the Policy Suggestion.

This limitation will be removed in a future release of PrecisionTree. In the meantime, you can still get a complete Policy Suggestion by removing the reference nodes, as follows:

Click File » Save As to save your workbook under a different name. That way there's no chance of accidentally overwriting the original workbook, which contains the reference nodes.
Right-click on the linked-to node and select Copy Subtree.
Right-click on the reference node and select Paste Subtree. Click Yes when the warning prompt appears. If other reference nodes point to the same linked-to node, right-click on each of them in turn and select Paste Subtree.

Last edited: 2018-06-01

This page was: Helpful | Not Helpful