Why I can't save my data in a .mat when using WebAppServer?
30 views (last 30 days)
Show older comments
My application is used to take a test to several people.
At each instance, Scores.mat is opened. It contains the structure Scores which stores the scores of the previous participants. The number of participants is retrieved. The new participant takes the test and the new scores are added to the strucure Scores. At the end of the test, the structure Scores is saved in Scores.mat, and so on.
% Load the scores table
load Scores.mat
app.Scores = Scores;
% Increment the participant index
app.idxParticipant = length(app.Scores) + 1;
% (...)
% Save scores (code has been modified for better clarity)
app.Scores(app.idxParticipant).Model(1) = app.EditField.Value;
app.Scores(app.idxParticipant).Model(2) = app.EditField_2.Value;
app.Scores(app.idxParticipant).Model(3) = app.EditField_3.Value;
% (...)
% Save listener scores
Scores = app.Scores;
save('Scores.mat','Scores')
Locally, everything runs well, of course. But when I test the Matlab WebApp, the very last step doesn't work: the structure Scores is not saved in Scores.mat and there is no errors in the logs.
Scores.mat is well embedded in the WebApp as I am able to open it and retrieve the Scores structure. The structure is well updated, I've checked it, but I am not able to save the updated structure back into Scores.mat.
I hope someone could help me here. Many thanks!
0 Comments
Answers (1)
Taylor
on 6 Aug 2024 at 13:18
I believe you need to specify the local path to which you are saving. You can do this with save, or you might want to check out uiputfile. That function will prompt the user with a standard "save file" dialog.
3 Comments
Taylor
on 6 Aug 2024 at 20:09
Apologies, I did misinterpret your question. fileparts(which("Scores.mat")) will give you the location of where "Scores.mat" is located.
See Also
Categories
Find more on Workspace Variables and MAT-Files in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!