MATLAB: Deplyoed executable file doesn’t read *.MAT file

matlab guineural network

I am working on classification using Neural Network tool.I've made a GUI which will take user given data attributes and classify it by the trained neural network and will show the perfect class of the product where does it belong.This GUI,who is taking some stored data by loading a *.mat file, is working great while running on Matlab but when I've deployed this GUI and a standalone exe file's been produced then it's become unable to read anything from the *.mat file but doing the rest activities fine (apart from reading the data from the .mat file). Please anybody knowing the remedy of that problem reply me.How I'll be able to make read that standalone executable file the data from that .MAT file ? Thank you.

Best Answer

When you load tour mat file, did you use

load('yourmatfile')  % This recognize the current folder in Matlab but not in your executable

You should use

load('yourfolder/yourmatfile')

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MATLAB: How to convert a GUI to an .exe application

See MATLAB Compiler, Build standalone applications from MATLAB programs

MATLAB: How to associate files with a specific compiled App Designer application on Windows

In Windows, this can be done by including inputs into the application. The input will automatically be the name of the file selected and when no file is selected, the user can be prompted to select one.

Add an input to your application by going to "Code View" and the "Editor" tool-strip tab and selecting "App Input Arguments".

It is best to make the input argument "varargin", this way your app can be opened on its own or from the .SampleApp files.

For more information on "varargin", please see the following link:

https://www.mathworks.com/help/matlab/ref/varargin.html

Once your startupFcn is taking in input, you can simply call the following to load the variables into the app when they exist:

function startupFcn(app, varargin)
if ~isempty(varargin)
   load(varargin{1}, '-mat');
else
   [FileName, PathName] = uigetfile;
   load([PathName FileName], '-mat');
end
end

Note: If you want to be able to access these variables outside the application's startupFcn, you will need to store them in the app.

https://www.mathworks.com/help/matlab/creating_guis/share-data-across-callbacks-in-app-designer.html

Open your .SampleApp files with the EXE application and the data will load in. You can right click the .SampleApp file and select "Open with..." then navigate to SampleApp.exe.

Attached is an example which shows how this method can be used to load plotting data into an app. By opening testdata.SampleApp with a compiled SampleApp.exe, SampleApp.exe opens with the data from testdata.SampleApp plotted and labeled. If you open SampleApp.exe alone, you will receive an empty axes since no data was included.

Please note that this workflow is not yet supported on non-Windows platforms.

Best Answer

Related Solutions

MATLAB: How to convert a GUI to an .exe application

MATLAB: How to associate files with a specific compiled App Designer application on Windows

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