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High Costs or All Relative Costs Exceed One


This is a variant of the NO TREE problem. When using a test sample or running a cross validation, all trees in the tree sequence have a relative error that exceeds one. Thus, no split exists that can improve the predictive performance of the tree.


SOLUTION: Vary Priors and Methods

For this problem the solutions provided for the NO TREE situation still hold. Experimentation with PRIORS and alternative splitting rules is your only recourse.