Discuss Categorical Data Subtypes in Statistics?

Data Science, AI and ML
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There are three types of categorical data, namely; nominal ordinal data and binary.

  • Nominal Data: This is a type of data used to name variables without providing any numerical value. Coined from the Latin nomenclature “Nomen” (meaning name), this data type is a subcategory of categorical data.
  • Ordinal Data: This is a data type with a set order or scale to it. However, this order does not have a standard scale on which the difference in variables in each scale is measured.
  • Binary data: It can have only two values. If you can place an observation into only two categories, you have a binary variable. Statisticians also refer to binary data as both dichotomous and indicator variables.