MATLAB: Warning Log on app designer

app designerwarning

Hi! I am writing a program on app designer, and am trying to see if there's a way to display a warning message that shows up for a specific MATLAB error? I understand how to use the warning messages themselves, but didn't know if I could tie it to the error below. Thanks!

Best Answer

Hi,

To get the custom warning message that shows up for a specific MATLAB error, you may use try catch statement like this:

    try
       %Error causing code
    catch 
        % Error handling
    End

For more information on try catch check this link.

You may add warning dialog box something like this in the catch block.

Hope this helps.

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MATLAB: Executing save command in App triggers warning “Unable to save App Designer app object”

It looks like, when one passes an app property into an anonymous function, one gets mentioned warning and wants to save app.x

app.x = optimoptions('fmincon', ...
    'OutputFcn', @(x, optimValues,state)CustomOptimPlotFval(app.y), 'Display', 'iter-detailed');
%                                                           ^^^^

Without app it works fine.

MATLAB: Is it possible to check warning message

Try using lastwarn:

% Initialize the global lastwarn variable to "Success"
lastwarn('Success') 
% Some code that may or may not produce an error
a=10;
% Check if a warning was issued.
if strcmp(lastwarn, 'Success')
  % All is well - no warning.
  fprintf('All is well - no warning.\n');
else
  % A warning was issued.
  fprintf('A warning was issued..\n');
end

Best Answer

Related Solutions

MATLAB: Executing save command in App triggers warning “Unable to save App Designer app object”

MATLAB: Is it possible to check warning message

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