Simple menu selection plot dependent on radio button selection (App designer)

Hello,

I am trying to design a simple app on app designer with 3 components, a UI axes, a drop down menu, and radio buttons. The drop down menu has two options to select from as a starting place, the user would then have to choose one of two options from the drop down menu in order to display the corresponding plot (total 4 plots for each case):

Plots:

1) Periodic & pretty plot (x1,y1)

2) Periodic & not pretty plot (x4,y4)

3) Non periodic & not pretty plot (x2,y2)

4) Non periodic & pretty plot ( x3,y3)

My attempt at this is to first read the table from the excel file I have, and then use switch/case statements along with if else conditions as follows:

classdef Simple_App_Test < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure             matlab.ui.Figure
        UIAxes               matlab.ui.control.UIAxes
        BeautyDropDownLabel  matlab.ui.control.Label
        BeautyDropDown       matlab.ui.control.DropDown
        DataTypeButtonGroup  matlab.ui.container.ButtonGroup
        PeriodicButton       matlab.ui.control.RadioButton
        NonperiodicButton    matlab.ui.control.RadioButton
    end

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

        % Code that executes after component creation
        function startupFcn(app)
            dataset = readtable('App_test.xlsx');
            x1 = dataset(:,1);
            x2 = dataset(:,3);
            x3 = dataset(:,5);
            x4 = dataset(:,7);
            y1 = dataset(:,2);
            y2 = dataset(:,4);
            y3 = dataset(:,6);
            y4 = dataset(:,8);
        end

        % Selection changed function: DataTypeButtonGroup
        function DataTypeButtonGroupSelectionChanged(app, event)
            selectedButton = app.DataTypeButtonGroup.SelectedObject;
            value = app.DataTypeButtonGroup.Value;
            switch value
                case "Periodic"
                    if app.BeautyDropDown.Value == 'Pretty'
                        plot(app.UIAxes,x1,y1);
                    else
                        plot(app.UIAxes,x4,y4);
                    end
                case "Non periodic"     
                    if app.BeautyDropDown.Value == 'Not Pretty'
                        plot(app.UIAxes,x2,y2);
                    else
                        plot(app.UIAxes,x3,y3);
                    end
                    end
        end

        % Value changed function: BeautyDropDown
        function BeautyDropDownValueChanged(app, event)
            value = app.BeautyDropDown.Value;
  
        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 = [100 100 640 480];
            app.UIFigure.Name = 'MATLAB App';

            % Create UIAxes
            app.UIAxes = uiaxes(app.UIFigure);
            title(app.UIAxes, 'Title')
            xlabel(app.UIAxes, 'X')
            ylabel(app.UIAxes, 'Y')
            app.UIAxes.Position = [90 159 450 291];

            % Create BeautyDropDownLabel
            app.BeautyDropDownLabel = uilabel(app.UIFigure);
            app.BeautyDropDownLabel.HorizontalAlignment = 'right';
            app.BeautyDropDownLabel.Position = [353 71 43 22];
            app.BeautyDropDownLabel.Text = 'Beauty';

            % Create BeautyDropDown
            app.BeautyDropDown = uidropdown(app.UIFigure);
            app.BeautyDropDown.Items = {'Pretty', 'Not Pretty'};
            app.BeautyDropDown.ValueChangedFcn = createCallbackFcn(app, @BeautyDropDownValueChanged, true);
            app.BeautyDropDown.Position = [411 71 100 22];
            app.BeautyDropDown.Value = 'Not Pretty';

            % Create DataTypeButtonGroup
            app.DataTypeButtonGroup = uibuttongroup(app.UIFigure);
            app.DataTypeButtonGroup.SelectionChangedFcn = createCallbackFcn(app, @DataTypeButtonGroupSelectionChanged, true);
            app.DataTypeButtonGroup.Title = 'Data Type';
            app.DataTypeButtonGroup.Position = [120 29 123 106];

            % Create PeriodicButton
            app.PeriodicButton = uiradiobutton(app.DataTypeButtonGroup);
            app.PeriodicButton.Text = 'Periodic';
            app.PeriodicButton.Position = [11 60 65 22];
            app.PeriodicButton.Value = true;

            % Create NonperiodicButton
            app.NonperiodicButton = uiradiobutton(app.DataTypeButtonGroup);
            app.NonperiodicButton.Text = 'Non periodic';
            app.NonperiodicButton.Position = [11 38 89 22];

            % 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 = Simple_App_Test

            % Create UIFigure and components
            createComponents(app)

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

            % Execute the startup function
            runStartupFcn(app, @startupFcn)

            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

Here is a screen shot of the design view:

I tried running the app but nothing gets plotted on the axis no matter what selection I make... I would really appreciate any guidence on this one!

Answer 1

[Sudil]

Hi Ghufran,

Judging from your code, one of the possible issues that could be causing this might be the actual value of the buttons not matching your switch/case statements. You can just use the disp function to display "app.DataTypeButtonGroup.Value" and "app.BeautyDropDown.Value" in each case and see if it matches.

If this still doesn't resolve the issue, you could share the app file and the excel file so I can reproduce the same on my end.