Listen for task progress on matlab

Hello. I want to know the progress when I execute matlab code. I am reading numeric data from a csv file, plotting this data, and then writing the data to a excel sheet. I want to add a progress bar for each of these tasks on GUI created in app designer because there is a lag time when reading and writing executed so I do not know when the task is complete. I am not sure how to do this. Below is the code i have thus far. Please assist.

    Data=readtable('data.csv',NumHeaderLines',10); 
    col_vec=data{:2}; plot(app.UIAxes,col_vec);
    xlswrite('Data.xls',col_vec,sheet,'HR','Range','A1');
    app.ProgressBar.startProgress("The task is starting...");
    pause(5)
    app.ProgressBar.setProgress(0.20),"The task is running...");
    app.ProgressBar.finishProgress("The task is finished");

Answer 1

[ILoveMATLAB]

If you have an app you can just use uiprogressdlg.

function myprogress1
    fig = uifigure;
    d = uiprogressdlg(fig,'Title','Please Wait',...
        'Message','Opening the application');
    pause(.5)

    % Perform calculations
    % ...
    d.Value = .33; 
    d.Message = 'Loading your data';
    pause(1)

    % Perform calculations
    % ...
    d.Value = .67;
    d.Message = 'Processing the data';
    pause(1)

    % Finish calculations
    % ...
    d.Value = 1;
    d.Message = 'Finishing';
    pause(1)

    % Close dialog box
    close(d)
end

[Lola]

The values .33 and .67 Can you please explain to me what they mean ? Is matlab able to display the text after the calculation is completed because I do not know how long it should take for matlab to perform a certain task

[ILoveMATLAB]

It would easier for you to understand if you ran the code. Nevertheless, value is the percent complete that you want to display. 0.33 means the progess bar will be 33% long. The message is the progess bar message.

Yes, the example shows that you can continue to update the progress bar after a calculation. The pause function is just a placeholder. You can replace the pause function with your calculation.

Please run and step through the example.