我正在构建一个使用具有连续值（双精度值）的字段的决策树。我应该如何创建范围节点来构建树（找到最佳范围值）
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The standard way in growing a decision tree is to find the threshold that minimizes the (weighted) sum of either the entropies or the Gini impurities of the child nodes.
ALGLIB is a good open-source implementation to study when one wants to implement this oneself:
于 2012-12-10T19:21:11.687 回答