The information is valid for PrecisionTree up through 7.6. Click Help » Documentation » Manual and look at Appendix A.įor convenience, those two pages are attached to this article. There's a much more thorough explanation in the PrecisionTree user manual. Working from right to left, the value of a chance node is the weighted average of the values of the nodes that that chance node branches to, and the value of a decision node is the value of the node on the TRUE branch of that decision node.The percentage (likelihood) of an end node is the product of each branch in the path from the root, counting TRUE as 1 and FALSE as 0. The value of an end node is the sum of the value of each branch in the path from the root.How does PrecisionTree calculate the values and probabilities it shows next to each node? Why are some nodes marked TRUE and others FALSE? It does not store any personal data.16.7. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies.
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