islevel

(Not Recommended) Determine if levels are in nominal or ordinal array

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The nominal and ordinal array data types are not recommended. To represent ordered and unordered discrete, nonnumeric data, use the Categorical Arrays data type instead.

Syntax

tf = islevel(levels,A)

Description

tf = islevel(levels,A) returns a logical array indicating which of the levels in levels correspond to a level in the nominal or ordinal array A.

Input Arguments

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Nominal or ordinal array, specified as a nominal or ordinal array object created with nominal or ordinal.

Levels to test, specified as a character vector, string array, cell array of character vectors, or 2-D character matrix.

Data Types: char | string | cell

Output Arguments

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Level indicator, returned as a logical array of the same size as levels. tf has the value 1 (true) when the corresponding element of levels is the label of a level in the nominal or ordinal array A, even if the level contains no elements. Otherwise, tf has the value 0 (false).

See Also

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Introduced in R2007a

Statistics and Machine Learning Toolbox Documentation

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