Why do I get the error "First argument must be text" when using 'strlength'?
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Why do I get the error "First argument must be text" when using 'strlength'?
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MathWorks Support Team
2023-12-4
This error message can occur when passing an invalid string to 'strlength'. Here are a few examples that produce the error in MATLAB R2023b:
>> str = {num2str(repmat(2,4,1))};
>> strlength(str)
Error using strlength
First argument must be text.
>> strlength({('test')'})
Error using strlength
First argument must be text.
>> strlength(inf)
Error using strlength
First argument must be text.
Note that the input to 'strlength' must be a valid string array, character vector, or cell array of character vectors.
See the 'strlength' documentation for valid examples:
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2023-12-4
2023-12-4
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