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Validate that value is numeric or logical or issue error





mustBeNumericOrLogical(A) issues an error if A is not numeric or logical. This function does not return a value.

mustBeNumericOrLogical accepts user-defined objects if the class of the object implements these methods:


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Validate that the value of an object property is a numeric or logical value.

a = axes;
Error using mustBeNumericOrLogical (line 11)
Values must be numeric or logical.

In this case, the value of the Visible property is a char vector, which results in an error.

This class constrains the value of Prop1 to numeric values.

classdef MyClass
      Prop1 {mustBeNumericOrLogical}

Create an object and assign a value to its property.

obj = MyClass;
obj.Prop1 = get(gca,'Visible');
Error setting 'Prop1' property of 'MyClass' class:
Values must be numeric or logical.

When you assign a value to the property, MATLAB® calls mustBeNumericOrLogical with the value being assigned to the property. mustBeNumericOrLogical issues an error because the value assigned to Prop1 is a char vector.

Input Arguments

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Value to validate, specified as a scalar or array of any one of the following:

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical
Complex Number Support: Yes

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Introduced in R2017a