How to get output multi from GUI ?

Hello

following code. I want to get repeatable output from GUI for example

A = 2

B= 3

ans = 6

I want to type input again like

A = 5

B= 4

ans = 20

I want to get 6 and 20 out of Testcal2 function and save somewhere like workspace .

then i want ans array like this

ans_array = [6 20]

finally

i want to sum all variable in ans_array

sum(ans_array,'all')

Could you help me please ?

function Testcal2
fig = uifigure('Name','program');
fig.Position = [100 100 800 500];


A = uieditfield(fig,'Position',[20 300 100 22],'ValueChangedFcn',@multiply);
B = uieditfield(fig,'Position',[180 300 100 22],'ValueChangedFcn',@multiply);

anslabel = uilabel(fig,'Position',[500 300 100 15]);

btn = uibutton(fig,'push','Position',[400, 300, 60, 22],'ButtonPushedFcn', @showans);
           

    function multiply(src, event)
        global ans
        var1 =  str2double(A.Value)
        var2 =  str2double(B.Value)
        ans = var1*var2;
    end

    function showans(src, event)
        global ans
        anslabel.Text = num2str(ans);
    end
end

[Geoff Hayes]

Thapakorn - why do you need to write the output to the workspace? Can't you just store the data to local variables (arrays) in your Testcal2 function and then write/save it to a mat file?

[Thapakorn Kongton]

Can you show me how to do this way ? @Geoff Hayes

Answer 1

[Geoff Hayes]

Thapakorn - try the following code

function Testcal2
    fig = uifigure('Name','program');
    fig.Position = [100 100 800 500];
    A = uieditfield(fig,'Position',[20 300 100 22],'ValueChangedFcn',@multiply);
    B = uieditfield(fig,'Position',[180 300 100 22],'ValueChangedFcn',@multiply);
    anslabel = uilabel(fig,'Position',[500 300 100 15]);
    btn = uibutton(fig,'push','Position',[400, 300, 60, 22],'ButtonPushedFcn', @showans);
    
    ans_array = []; % <---- nested function have access to this variable
           
    function multiply(src, event)
        var1 =  str2double(A.Value)
        var2 =  str2double(B.Value)
        ans_array(end+1) = var1*var2;
    end
    function showans(src, event)
        anslabel.Text = num2str(ans_array(end));
        save('Testcal2.mat', ans_array); % <----- save the answers to a mat file
    end
end

Note how the ans_array is updated whenever multiply is called, and we save the results to a mat file whenever showans is called.