WOLFRAM

Wolfram 语言与系统参考资料中心

CategoricalValue[cat]

给出与分类对象 cat 相关联的底层表达式.

CategoricalValue[scale]

给出与给定分类 scale 的类别关联的表达式.

CategoricalValue[obj,prop]

给出类别或分类量表的指定属性 prop.

更多信息
Details and Options Details and Options
范例  
基本范例  
范围  
类别的属性  
分类量表的属性  
参见
历史
按以下格式引用：

CategoricalValue

CategoricalValue[cat]

给出与分类对象 cat 相关联的底层表达式.

CategoricalValue[scale]

给出与给定分类 scale 的类别关联的表达式.

CategoricalValue[obj,prop]

给出类别或分类量表的指定属性 prop.

更多信息

  • CategoricalValue 通常用于从名义或序数类别及其量表中获取属性，特别是提取其底层表达式.
  • CategoricalValue 的第一个参数可以是一个 Nominal 或 Ordinal 对象，无论它们是表示单个类别还是一个分类量表. CategoricalValue 逐项作用于列表输入的各个元素.
  • CategoricalValue[scale]
    给出与给定分类 scale 的类别关联的表达式.
  • prop 可取的值包括：
  • "Expression"类别的底层表达式y
    "Category"单个 Nominal 或 Ordinal 类别
    "Index"类别在量表中的索引
    "Label"用于类别排版显示的标签
    "Scale"分类量表
    "Score"用于对 Ordinal 类别进行排序的数值分数

范例

打开所有单元 关闭所有单元

基本范例  (3)

将一个 Nominal 类别转换为其底层表达式：

Wolfram Language code: CategoricalValue[Nominal[Association["CategoryList" -> {"Heads", "Tails"}, "LabelList" -> {"Heads", "Tails"}, "ScoreList" -> {1, 2}], 2]]

将一个 Nominal 类别列表转换为其底层表达式：

Wolfram Language code: RandomChoice[Nominal[{"Heads", "Tails"}], 6]
Wolfram Language code: CategoricalValue[%]

获取一个 Ordinal 类别列表的 "Score" 值：

Wolfram Language code: RandomChoice[Ordinal[{"None", "Light", "Moderate", "High", "Maximum"}], 3]
Wolfram Language code: CategoricalValue[%, "Score"]

范围  (9)

类别的属性  (4)

获取名义类别的量表：

Wolfram Language code: Nominal[{"male", "female"}, "male"]
Wolfram Language code: CategoricalValue[%, "Scale"]

将量表转换为其类别列表：

Wolfram Language code: Normal[%]

获取序数类别的量表：

Wolfram Language code: CategoricalValue[Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 7], "Scale"]

获取 Ordinal 类别的 "Label" 值：

Wolfram Language code: CategoricalValue[Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 7], "Label"]

获取 Nominal 类别的 "Index" 值：

Wolfram Language code: CategoricalValue[Nominal[Association["CategoryList" -> {"accrue", "choosy", "spuriously"}, "LabelList" -> {"accrue", "choosy", "spuriously"}, "ScoreList" -> {1, 2, 3}], 2], "Index"]

给出一个类别列表的表达式：

Wolfram Language code: CategoricalValue[{Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 3], Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 1], Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 2], Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 5]}, "Expression"]

求这些类别的分数：

Wolfram Language code: CategoricalValue[{Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 3], Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 1], Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 2], Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}], 5]}, "Score"]

分类量表的属性  (5)

获取名义量表的类别：

Wolfram Language code: Nominal[{"Heads", "Tails"}]
Wolfram Language code: CategoricalValue[%, "Category"]

将类别转换为其底层表达式：

Wolfram Language code: Normal[%]

获取序数量表的类别：

Wolfram Language code: CategoricalValue[Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}]], "Category"]

获取 Ordinal 类别的 "Label" 值：

Wolfram Language code: CategoricalValue[Ordinal[Association["CategoryList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "LabelList" -> {"None", "VeryLight", "Light", "Moderate", "High", "VeryHard", "Maximum"}, "ScoreList" -> {1, 2, 3, 4, 5, 6, 7}]], "Label"]

获取 Nominal 量表的 "Index" 值：

Wolfram Language code: CategoricalValue[Nominal[Association["CategoryList" -> {"accrue", "choosy", "spuriously"}, "LabelList" -> {"accrue", "choosy", "spuriously"}, "ScoreList" -> {1, 2, 3}]], "Index"]

给出量表的表达式列表：

Wolfram Language code: CategoricalValue[Ordinal[Association["CategoryList" -> {"NS", "S3", "S2", "S1"}, "LabelList" -> {"Not Suitable", "Marginally Suitable", "Moderately Suitable", "Highly Suitable"}, "ScoreList" -> {0, 0.5, 0.75, 1}]], "Expression"]

给出量表中每个类别的标签：

Wolfram Language code: CategoricalValue[Ordinal[Association["CategoryList" -> {"NS", "S3", "S2", "S1"}, "LabelList" -> {"Not Suitable", "Marginally Suitable", "Moderately Suitable", "Highly Suitable"}, "ScoreList" -> {0, 0.5, 0.75, 1}]], "Label"]

给出所有类别的分数：

Wolfram Language code: CategoricalValue[Ordinal[Association["CategoryList" -> {"NS", "S3", "S2", "S1"}, "LabelList" -> {"Not Suitable", "Marginally Suitable", "Moderately Suitable", "Highly Suitable"}, "ScoreList" -> {0, 0.5, 0.75, 1}]], "Score"]

对于分类量表输入，"Scale" 属性返回输入的量表：

Wolfram Language code: CategoricalValue[Ordinal[Association["CategoryList" -> {"NS", "S3", "S2", "S1"}, "LabelList" -> {"Not Suitable", "Marginally Suitable", "Moderately Suitable", "Highly Suitable"}, "ScoreList" -> {0, 0.5, 0.75, 1}]], "Scale"]
Wolfram Research (2026)，CategoricalValue，Wolfram 语言函数，https://reference.wolfram.com/language/ref/CategoricalValue.html.

文本

Wolfram Research (2026)，CategoricalValue，Wolfram 语言函数，https://reference.wolfram.com/language/ref/CategoricalValue.html.

CMS

Wolfram 语言. 2026. "CategoricalValue." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/CategoricalValue.html.

APA

Wolfram 语言. (2026). CategoricalValue. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/CategoricalValue.html 年

BibTeX

@misc{reference.wolfram_2026_categoricalvalue, author="Wolfram Research", title="{CategoricalValue}", year="2026", howpublished="\url{https://reference.wolfram.com/language/ref/CategoricalValue.html}", note=[Accessed: 14-August-2026]}

BibLaTeX

@online{reference.wolfram_2026_categoricalvalue, organization={Wolfram Research}, title={CategoricalValue}, year={2026}, url={https://reference.wolfram.com/language/ref/CategoricalValue.html}, note=[Accessed: 14-August-2026]}