Implementation .m file into Appdesigner troubleshot

I try to create diffusion simple calculator with app designer I have everything done and pre-code in .m files, now I try to implement that into appdesigner where I change the input (like wants appdesigner) and output(like want appdesigner) but in output I have some problem because I can´t RUN it normally can anyone help me? Or explain me what happening? I do this only for my study and I need the pass throught this...

and this is a code (with pre-maid appdesigner code)

classdef app1 < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure                       matlab.ui.Figure
        REditField                     matlab.ui.control.NumericEditField
        REditFieldLabel                matlab.ui.control.Label
        ubytokkoncentraciejeEditField  matlab.ui.control.NumericEditField
        ubytokkoncentraciejeEditFieldLabel  matlab.ui.control.Label
        EditField                      matlab.ui.control.NumericEditField
        EditFieldLabel                 matlab.ui.control.Label
        VypotajButton                  matlab.ui.control.StateButton
        vstupdtEditField               matlab.ui.control.NumericEditField
        vstupdtEditFieldLabel          matlab.ui.control.Label
        vstuptEditField                matlab.ui.control.NumericEditField
        vstuptEditFieldLabel           matlab.ui.control.Label
        vstupTEditField                matlab.ui.control.NumericEditField
        vstupTEditFieldLabel           matlab.ui.control.Label
        vstupk0EditField               matlab.ui.control.NumericEditField
        vstupk0EditFieldLabel          matlab.ui.control.Label
        vstupEEditField                matlab.ui.control.NumericEditField
        vstupEEditFieldLabel           matlab.ui.control.Label
        zadajvstupC0EditField          matlab.ui.control.NumericEditField
        zadajvstupC0EditFieldLabel     matlab.ui.control.Label
        UIAxes                         matlab.ui.control.UIAxes
    end

    % Callbacks that handle component events
    methods (Access = private)

        % Value changed function: zadajvstupC0EditField
        function zadajvstupC0EditFieldValueChanged(app, event)
      
        end

        % Value changed function: VypotajButton
        function VypotajButtonValueChanged(app, event)
             in = data(); % načitanie vstupu
for k = 1:length(in) %vypis vstupu 
    in(k)
end

[tau1, c]=C(in); 

[tau2,x]=X(in);
tau2 = tau2';
x = x';
table1 = [tau1 c];
writematrix(table1,"vystup1.xls");
table2 = [tau2 x];
writematrix(table2,"vystup2.xls");
%print1Var = num2str(c(length(c)));
%print2var = num2str(x(length(x)));

app.EditField.Value = double(num2str(c(length(c))));
app.ubytokkoncentraciejeEditField.Value = double(num2str(x(length(x))));


            
            function in = data(in)
              

            in.c0 = app.zadajvstupC0EditField.Value;
            in.E = app.vstupEEditField.Value;
            in.k0 = app.vstupk0EditField.Value;
            in.T = app.vstupTEditField.Value;
            in.t = app.vstuptEditField.Value;
            in.dt = app.vstupdtEditField.Value;
            in.R=8.314;
            end

 

%c.m
function [tau, c]= C(in)
options = odeset;
%vypočet diff. rovnice 
[tau,c]=ode23(@dif_rovnica,[0 in.t],in.c0,options,in);
end
function dcdt = dif_rovnica(tau,c,in)
dcdt = zeros(1,1);
k = in.k0*exp(-(in.E/(in.R*in.T)));
dcdt = -k*c;
end

%x.m
function[tau,x]= X(in)
i=1;
cas = 0;
while(cas<=in.t)
    tau(i)=cas;
    k=in.k0*exp(-(in.E/(in.R*in.T)));
    x(i)=in.c0*(1-exp(-k*cas));
    cas = cas+in.dt;
    i=i+1;
end
end

            
        end
    end

    % Component initialization
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)

            % Create UIFigure and hide until all components are created
            app.UIFigure = uifigure('Visible', 'off');
            app.UIFigure.Position = [100 100 764 594];
            app.UIFigure.Name = 'MATLAB App';

            % Create UIAxes
            app.UIAxes = uiaxes(app.UIFigure);
            title(app.UIAxes, 'Title')
            xlabel(app.UIAxes, 'X')
            ylabel(app.UIAxes, 'Y')
            zlabel(app.UIAxes, 'Z')
            app.UIAxes.Position = [293 225 415 303];

            % Create zadajvstupC0EditFieldLabel
            app.zadajvstupC0EditFieldLabel = uilabel(app.UIFigure);
            app.zadajvstupC0EditFieldLabel.HorizontalAlignment = 'right';
            app.zadajvstupC0EditFieldLabel.Position = [54 556 91 22];
            app.zadajvstupC0EditFieldLabel.Text = 'zadaj vstup C0 :';

            % Create zadajvstupC0EditField
            app.zadajvstupC0EditField = uieditfield(app.UIFigure, 'numeric');
            app.zadajvstupC0EditField.ValueChangedFcn = createCallbackFcn(app, @zadajvstupC0EditFieldValueChanged, true);
            app.zadajvstupC0EditField.Position = [160 556 100 22];

            % Create vstupEEditFieldLabel
            app.vstupEEditFieldLabel = uilabel(app.UIFigure);
            app.vstupEEditFieldLabel.HorizontalAlignment = 'right';
            app.vstupEEditFieldLabel.Position = [97 519 55 22];
            app.vstupEEditFieldLabel.Text = 'vstup E : ';

            % Create vstupEEditField
            app.vstupEEditField = uieditfield(app.UIFigure, 'numeric');
            app.vstupEEditField.Position = [160 515 100 22];

            % Create vstupk0EditFieldLabel
            app.vstupk0EditFieldLabel = uilabel(app.UIFigure);
            app.vstupk0EditFieldLabel.HorizontalAlignment = 'right';
            app.vstupk0EditFieldLabel.Position = [93 482 60 22];
            app.vstupk0EditFieldLabel.Text = 'vstup k0 : ';

            % Create vstupk0EditField
            app.vstupk0EditField = uieditfield(app.UIFigure, 'numeric');
            app.vstupk0EditField.Position = [160 474 100 22];

            % Create vstupTEditFieldLabel
            app.vstupTEditFieldLabel = uilabel(app.UIFigure);
            app.vstupTEditFieldLabel.HorizontalAlignment = 'right';
            app.vstupTEditFieldLabel.Position = [99 443 54 22];
            app.vstupTEditFieldLabel.Text = 'vstup T : ';

            % Create vstupTEditField
            app.vstupTEditField = uieditfield(app.UIFigure, 'numeric');
            app.vstupTEditField.Position = [160 433 100 22];

            % Create vstuptEditFieldLabel
            app.vstuptEditFieldLabel = uilabel(app.UIFigure);
            app.vstuptEditFieldLabel.HorizontalAlignment = 'right';
            app.vstuptEditFieldLabel.Position = [103 397 50 22];
            app.vstuptEditFieldLabel.Text = 'vstup t : ';

            % Create vstuptEditField
            app.vstuptEditField = uieditfield(app.UIFigure, 'numeric');
            app.vstuptEditField.Position = [160 392 100 22];

            % Create vstupdtEditFieldLabel
            app.vstupdtEditFieldLabel = uilabel(app.UIFigure);
            app.vstupdtEditFieldLabel.HorizontalAlignment = 'right';
            app.vstupdtEditFieldLabel.Position = [96 352 57 22];
            app.vstupdtEditFieldLabel.Text = 'vstup dt : ';

            % Create vstupdtEditField
            app.vstupdtEditField = uieditfield(app.UIFigure, 'numeric');
            app.vstupdtEditField.Position = [160 352 100 22];

            % Create VypotajButton
            app.VypotajButton = uibutton(app.UIFigure, 'state');
            app.VypotajButton.ValueChangedFcn = createCallbackFcn(app, @VypotajButtonValueChanged, true);
            app.VypotajButton.Text = 'Vypočítaj';
            app.VypotajButton.Position = [160 131 100 23];

            % Create EditFieldLabel
            app.EditFieldLabel = uilabel(app.UIFigure);
            app.EditFieldLabel.HorizontalAlignment = 'right';
            app.EditFieldLabel.Position = [1 90 533 30];
            app.EditFieldLabel.Text = {'Vypočet zmeny koncentracie C a ubytku koncentracie x reaktantou pri priebehu chemicej rekacie '; '    "vysledok koncentracie je"'};

            % Create EditField
            app.EditField = uieditfield(app.UIFigure, 'numeric');
            app.EditField.Position = [541 98 88 22];

            % Create ubytokkoncentraciejeEditFieldLabel
            app.ubytokkoncentraciejeEditFieldLabel = uilabel(app.UIFigure);
            app.ubytokkoncentraciejeEditFieldLabel.HorizontalAlignment = 'right';
            app.ubytokkoncentraciejeEditFieldLabel.Position = [403 48 136 22];
            app.ubytokkoncentraciejeEditFieldLabel.Text = '"ubytok koncentracie je "';

            % Create ubytokkoncentraciejeEditField
            app.ubytokkoncentraciejeEditField = uieditfield(app.UIFigure, 'numeric');
            app.ubytokkoncentraciejeEditField.Position = [546 48 88 22];

            % Create REditFieldLabel
            app.REditFieldLabel = uilabel(app.UIFigure);
            app.REditFieldLabel.HorizontalAlignment = 'right';
            app.REditFieldLabel.Position = [609 556 25 22];
            app.REditFieldLabel.Text = 'R';

            % Create REditField
            app.REditField = uieditfield(app.UIFigure, 'numeric');
            app.REditField.Position = [649 556 100 22];
            app.REditField.Value = 8.314;

            % Show the figure after all components are created
            app.UIFigure.Visible = 'on';
        end
    end

    % App creation and deletion
    methods (Access = public)

        % Construct app
        function app = app1

            % Create UIFigure and components
            createComponents(app)

            % Register the app with App Designer
            registerApp(app, app.UIFigure)

            if nargout == 0
                clear app
            end
        end

        % Code that executes before app deletion
        function delete(app)

            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end

I attache the .m files what I try to implement into appdesigner app:

[Steven Lord]

What does "I can´t RUN it normally" mean in this context?

• Do you receive warning and/or error messages? If so the full and exact text of those messages (all the text displayed in orange and/or red in the Command Window) may be useful in determining what's going on and how to avoid the warning and/or error.
• Does it do something different than what you expected? If so, what did it do and what did you expect it to do?
• Did MATLAB crash? If so please send the crash log file (with a description of what you were running or doing in MATLAB when the crash occured) to Technical Support using the Contact Support link on the Support section of the MathWorks website so we can investigate.

If possible please also include the code you use to try to start the app and a walkthrough of what you do inside the app (I press button X, I enter 1 in edit box Y, etc.) That information could also be useful in determining what's going wrong.

[martin Kostovcik]

Sure,

everywhere is "10" it´s input variable.Then I click the "Vypočitať" (that button down) means calculate. then I expected to fill thees 2 fill box where is "0" but nothing is going on.

And the crash info is here:

[Walter Roberson]

Why are you doing double(num2str(c(end)) ? If you want to round it then use round()

[martin Kostovcik]

I changed that but noting new... still same problem >>>>> ' Value' must be a double scalar.

[Walter Roberson]

            in.t = app.vstuptEditField.Value;

You do not initialize Value for that field, so it would initialize to 0. Suppose it is still 0 at the time the VypotajButtonValueChanged is run, then in.t would be set to 0, and your ode*() calls would be asked to run for time 0 to 0, giving empty output.

[martin Kostovcik]

I initialize that variables like "10" and then I try to calculate that with all thees variables into VypotajButtonValueChanged (after initialize when all vars are == 10 )

I use thees variables for calculations C0,E,k0,T,t,dt and R where C0,E,k0,T,t,dt its set == "10" and R = 8.314

like you can see here:

or did I misunderstand something?

[martin Kostovcik]

And expected output ("-1.1733e-06") is for the first edit field where is "0"

and the second edit field where is "0" its expected output "10"

Answer 1

[Steven Lord]

Which of those lines, line 55 or 56, throws the error?

Set a breakpoint on that line. Then depending on which line throws the error show us the contents of the variable c or x. According to the description of the Value property for NumericEditField components on the documentation page:

"MATLAB rejects the value if:

• It cannot convert the character vector to a scalar number.
• The value is NaN, blank, or a complex number.
• The value is a mathematical expression, such as 1 + 2.
• The value is less than the Limits property lower limit or greater than the upper limit."

Ah, I see the problem. You don't want to use num2str here.

n = num2str(123)

n = '123'

d = double(n)

d = 1×3

49 50 51

The variable d contains the ASCII values for the characters in n and is not scalar even though 123 is because 123 has more than 1 digit. Just directly set the Value property to either c(end) or x(end).

q = 123

q = 123

isscalar(n) % False

ans = logical
   0

isscalar(d) % False

ans = logical
   0

isscalar(q) % True

ans = logical
   1

[martin Kostovcik]

I change that to :

app.EditField.Value = isscalar(num2str(c(length(c))));
app.ubytokkoncentraciejeEditField.Value = isscalar(num2str(x(length(x))));

but there is still issues the app don´t drop but went stuck

and me expected output, its still "0" , where stuck thees calculations?

[Steven Lord]

You don't want that field to contain 0 (if the value is not scalar isscalar will return false which is displayed as 0) or 1 (if isscalar returns true.) You want it to display the actual value. Get rid of the isscalar call and the num2str call.

app.EditField.Value = c(end);
app.ubytokkoncentraciejeEditField.Value = x(end);

[martin Kostovcik]

Yeeeh, there was the problem

now its works well. thanks guys