- A list of text where some values in the list are repeated
- A column in a table that labels which group each row belongs to
(Select all that apply) In which of the following situations would you typically use a categorical array?
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Lei Hou on 17 Oct 2021
Typically, categorical is useful when your array is large, contains duplicated values and has finite set of discrete categories. For example, a very long vector of US states. A categorical array provides efficient storage and convenient manipulation of nonnumeric data. Regarding the situations you provided, I would recommend: