• 有序变量 - 引用次数：3

  Ordered categorical variables means the response variables that has more than three categories between which are ordered.

  多分类有序变量是指分类数大于等于3,且类别之间存在序次关系的响应变量。

  参考来源 - 多分类有序变量间距差异的统计分析与实际应用

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