How to use the same .mat files in different activities AppDesigner

1 visualizzazione (ultimi 30 giorni)
Hello everyone!
I'm new to AppDesigner and I'm trying to create an app where I load a raw signal, perform pre-processing and feature extraction, save this new processed signal and then perform some statistical analysis. How can I sequently use the .mat file I need, without having to load it for every action?
Thanks!

Risposte (1)

jonas
jonas il 10 Lug 2020
You could put the content of the .mat file in a public property. Go to code view > select properties > add a public property.
properties (Access = public)
data = load('filename.mat')
end
You can then access the data through
app.data
  2 Commenti
Pedro Guincho
Pedro Guincho il 10 Lug 2020
Yes, I try to do that. The problem is that I have different .mat files and I want to work with the one I choose from the search tab with the code below. How can I atribute the chosen file to the initial property?
% Button pushed function: STARTButton_2
function STARTButton_2Pushed(app, event)
if app.DAQButton_2.Value == true;
app.TabGroup.SelectedTab = app.DAQTab;
else app.LoadmatfileButton_2.Value = true;
app.TabGroup.SelectedTab = app.PrProcessingTab;
[file,path] = uigetfile('*.mat', 'Select a File');
load (fullfile(path,file))
[f,P1]=plot_FFT(100000,captured_data);
plot(app.UIAxes2, f , P1);
end
end
jonas
jonas il 10 Lug 2020
I'm not sure I follow. What is the problem? Just ask the user for the file and put it in the public property. You want the user to be able to switch between files? Just replace the content of the public property.

Accedi per commentare.

Categorie

Scopri di più su Develop Apps Using App Designer in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by