目录1 分解代码1.1 最优叶子节点数与树数确定1.2 循环准备1.3 数据划分1.4 随机森林实现1.5 精度衡量1.6 变量重要程度排序1.7 保存模型2 完整代码本文分为两部分，首先是对代码进行分段、详细讲解，方便大家理解；随
I\'m building an application where I have products and categories. Category has_many properties and each property has a list of possible values. After a category is set to the product all properties s
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