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[学习分享] 请问大神什么是区间型变量什么是列名型变量？ [推广有奖]

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344109549 发表于 2016-2-22 12:13:36 |AI写论文

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如题，SAS中什么是区间型变量什么是列名型变量，并且测量水平是什么意思呢？谢谢！

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wind2019 发表于4楼查看完整内容

● A categorical variable is one for which the measurement scale consists of a set of categories. ● Categorical variables for which levels (categories) do not have a natural ordering are called nominal. 列名型变量 ● Categorical variables that do have a natural ordering of their levels are called ordinal. 序列型变量 ● An interval variable is one that has numerical distances between any two ...

沙发

amindar

发表于 2018-6-28 14:41:43

没有人解答吗？同问

藤椅

finale999 发表于 2021-5-20 16:09:09 来自手机

同问，16年的帖子居然没人回答

板凳

wind2019 发表于 2022-2-11 16:52:47

● A categorical variable is one for which the measurement scale consists of a set of categories.
● Categorical variables for which levels (categories) do not have a natural ordering are called nominal. 列名型变量
● Categorical variables that do have a natural ordering of their levels are called ordinal. 序列型变量
● An interval variable is one that has numerical distances between any two levels of the scale.1 区间型变量
● A binary variable is one takes only two values such as “1” and “0”, “M” and “F”, etc. 二值型变量