特征顺序会影响sklearn中的决策树算法吗? [英] Does feature order impact Decision tree algorithm in sklearn?

问题描述

我读了一些材料:

• 决策树sklearn中的文档

但是我可以找到是否更改功能顺序(功能名称集: [a，b，c]更改为[b，a，c]).这实际上会影响决策树的结果吗?

However I can find if I change feature order(the set of feature name: [a,b,c] change into [b,a,c]) in the data. Does this actually affect decision tree result?

推荐答案

不是. Sklearn通常使用购物车树，通过选择使成本函数最小化的功能来确定最佳拆分.因此，列的顺序并不重要.

Not really. Sklearn generally uses Cart trees where the best split is decided by picking the feature that minimizes a cost function. So the order of column doesn't really matter.

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