MATLAB: How to import matrix to app designer

app designercell arraydata import

I have a cell array in my matlab workspace. How do I import it or use its data in code written in app designer?

Best Answer

Before 2017b,there was a workaround to pass data from workspace to appdesigner. Please refer this link for the method:
https://www.mathworks.com/matlabcentral/answers/284140-call-an-mlapp-with-input-argument-s
In 2017b,the problem is resolved:
1) If you want to share/load data from outside the app, try the following:
   a) You can load data from a MAT file in appdesigner code as shown below (inside a 
      callback function):
      >> mydata = load('data.mat'); % This will load all the variables in data.mat to 
                                      mydata structure
   b) If you would like to load your data at the initialization phase of the app, add 
      the above code in "startupFcn" callback of the app.
   c) You can read data from base workspace as shown below.
     >> data = evalin('base','varName'); % varName is in MATLAB base workspace
        https://www.mathworks.com/help/matlab/ref/evalin.html
2) If you want to share data among callbacks of the app, you can create additional public/private properties of the app and store data in these proprieties.
    Refer to the following documentation page for additional information on this.
    https://www.mathworks.com/help/matlab/creating_guis/share-data-across-callbacks-in-app-designer.html
3) If you want to pass data from app to other external function or to the base workspace, you can do this as shown below:
   >> app = myTestApp; % call app and assign to a variable
   >> % Retrieve public properties (x,y) of the app
   >> x = app.x;
   >> y = app.y;
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