I want to collect data to cell array in Matlab App Designer.

Hi,

l am trying to make an app that takes some input from user and makes calculations, and then collects the data (in cell array or something).

After that, input boxes should set to zero to allow user to input other cases. My goal is collecting all the data from user, and allow user to get the result for a sepecific case if wanted.

I couldn't make the collection part for more than 1 case.

Thank you in advance.

[piston_pim_offset]

If l get how to collect data to in order, l can finish my app (hopely).

[piston_pim_offset]

Isn not there anyone who can help me about this problem?

I tried to use a loop inside the button function and give a value to loop variable in a matlab script, but function of the button did not recognize "i=1; "

 i=1;

run xxx.mlapp

Answer 1

[Voss]

Here is an app that collects data entered into two numeric editfields into matrix, and also performs some calculations and stores the results in a cell array.

To use:

1. Enter some numbers.
2. Hit the Save button to store the numbers, perform some calculations, store the results, and reset the editfields to 0.
3. Hit the Done button to save all the data and results collected so far into a mat file and close the application.

Hopefully you can get some ideas about what to do with your real app from this simple app.

[piston_pim_offset]

Thank you for your suggestion. I somehow figured it out adding "private property" that has 'i=1'. With this, i is defined in all functions, which enabled me to store the data in a cell array by writing 'i=i+1' a the end of the button function.

l am using Matlab Online, so it would be great if you can share the code in comments.

Best regards

[Voss]

classdef test < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure             matlab.ui.Figure
        SaveButton           matlab.ui.control.Button
        Data2EditField       matlab.ui.control.NumericEditField
        Data2EditFieldLabel  matlab.ui.control.Label
        Data1EditField       matlab.ui.control.NumericEditField
        Data1EditFieldLabel  matlab.ui.control.Label
        DoneButton           matlab.ui.control.Button
    end

    
    properties (Access = private)
        data = [];
        results = {};
    end
    

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

        % Button pushed function: SaveButton
        function cb_save(app, event)
            
            % store the EditFields' current values in a new row of app.data:
            data1 = app.Data1EditField.Value;
            data2 = app.Data2EditField.Value;
            app.data(end+1,:) = [data1 data2];
            
            % perform some calculations:
            result = {data1*data2, data1+data2, data1/data2};
            
            % store the result in a new element of app.results:
            app.results{end+1} = result;
            
            % reset the EditFields' values to 0:
            app.Data1EditField.Value = 0;
            app.Data2EditField.Value = 0;
            
        end

        % Button pushed function: DoneButton
        function cb_done(app, event)
            
            % save app.data and app.results to a mat file:
            data = app.data;       %#ok<ADPROPLC> 
            results = app.results; %#ok<ADPROPLC> 
            save('data_and_results.mat','data','results');
            
            % close the application:
            close(app.UIFigure);
            
        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 = [100 100 214 132];
            app.UIFigure.Name = 'MATLAB App';

            % Create DoneButton
            app.DoneButton = uibutton(app.UIFigure, 'push');
            app.DoneButton.ButtonPushedFcn = createCallbackFcn(app, @cb_done, true);
            app.DoneButton.Position = [121 15 70 22];
            app.DoneButton.Text = 'Done';

            % Create Data1EditFieldLabel
            app.Data1EditFieldLabel = uilabel(app.UIFigure);
            app.Data1EditFieldLabel.HorizontalAlignment = 'right';
            app.Data1EditFieldLabel.Position = [32 94 44 22];
            app.Data1EditFieldLabel.Text = 'Data 1:';

            % Create Data1EditField
            app.Data1EditField = uieditfield(app.UIFigure, 'numeric');
            app.Data1EditField.Position = [91 94 100 22];

            % Create Data2EditFieldLabel
            app.Data2EditFieldLabel = uilabel(app.UIFigure);
            app.Data2EditFieldLabel.HorizontalAlignment = 'right';
            app.Data2EditFieldLabel.Position = [32 57 44 22];
            app.Data2EditFieldLabel.Text = 'Data 2:';

            % Create Data2EditField
            app.Data2EditField = uieditfield(app.UIFigure, 'numeric');
            app.Data2EditField.Position = [91 57 100 22];

            % Create SaveButton
            app.SaveButton = uibutton(app.UIFigure, 'push');
            app.SaveButton.ButtonPushedFcn = createCallbackFcn(app, @cb_save, true);
            app.SaveButton.Position = [31 15 70 22];
            app.SaveButton.Text = 'Save';

            % 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 = test

            % 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