ischar - Determine if input is character array - MATLAB (original) (raw)

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Determine if input is character array

Syntax

Description

tf = ischar([A](#bvh32el-A)) returns logical 1 (true) if A is a character array and logical 0 (false) otherwise.

example

Examples

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Create different arrays, and then determine if they are character arrays.

Test a character vector.

Test a numeric array.

X = 1×3

0.8147    0.9058    0.1270

Test a string array.

str = ["Smith","Chung","Morales"; ... "Sanchez","Peterson","Adams"]

str = 2×3 string "Smith" "Chung" "Morales" "Sanchez" "Peterson" "Adams"

str is a string array, not a character array, so ischar returns 0.

Input Arguments

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Input array, specified as a scalar, vector, matrix, or multidimensional array. A can be any data type.

Extended Capabilities

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The ischar function fully supports GPU arrays. To run the function on a GPU, specify the input data as a gpuArray (Parallel Computing Toolbox). For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox).

Version History

Introduced before R2006a