How to call the function A in another function B under the static methods of the same APP Designer?

Hello! I'm learning how to design a MATLAB app with MATLAB APP Designer. I' ve written some static functions as the following examples, but I couldn't call the function "add1" in the funtion "test".

methods (Static)

    function test(a, b)
        c = add1(a, b);     %Error: Undefined function 'add1' for input arguments of type 'double'.
        fprintf('The results is %d', c);
    end
    
    function z = add1(x, y)
        z = x + y;
    end
end

I' m not familiar to the OOP. Could you guide me what mistakes I made and how to call the "add1" correctly in addition to nest it in "test"?

Thank you!

Answer 1

[Bhanu Prakash]

Hi Qiang,

I understand that you want to call the function ‘add1’ from a different function ‘test’, which is under the static methods of the same App Designer class.

One simpler way to accompish this is to define a class using the 'classdef' function in MATLAB, inheriting the base class 'matlab.apps.AppBase' to utilize the built-in functionality provided by App Designer.

Consider the following code:

classdef myApp < matlab.apps.AppBase 
    methods (Static) 
        function test(a, b) 
            c = myApp.add1(a, b); 
            fprintf('The result is %d\n', c); 
        end 
        function z = add1(x, y) 
            z = x + y; 
        end 
    end 
end 

where, 'myApp' is the name of the App Designer class. You can call the function 'add1' from the 'test' function as follows:

>>myApp.test(2,3) 
The result is 5 

For more information on the 'classdef' function, kindly refer to the following documentation:

https://in.mathworks.com/help/matlab/ref/classdef.html?s_tid=doc_ta

[Qiang Fu]

Dear friend,

Thank you for your help! I have practiced it in my app project and it works well.