MATLAB: Skip Error Message and Continue with the M-File

algofinanceintenretMATLAByahoo finance

Hello dear Friends,

does someone know how to have a m-file to continue after an error message is returned !?

I've a file that retrives info from the internet (data, etc.). Sometimes (randomly) an internet connection problem results (error 111) and matlab stops to execute the m-file algo! Since this files connects to more than 5000 web pages (one per time) it is possible that a connection error is returned in matlab.

I simply want the program to resume the operations specified in the m-file.

does someone know how to do this?

thank you for your help …

Best Answer

Completing Gerd's answer, I would include the catch statement. The catch executes everytime an error is encountered in the try block, so maybe not display an error message that stops the execution, but maybe a message in console to know that something went wrong (execution will continue anyway):

try
    % Code to be executed goes here.
catch
    disp('An error occurred while retrieving information from the internet.');
    disp('Execution will continue.');
end

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MATLAB: What happens if a MATLAB executable (GUI for example) runs into an erro while running

Any uncaught error will result in shutdown. If that is not what you want then be sure to put in protective tests, test results of operations to be sure they succeeded, and use try/catch when appropriate.

MATLAB: M-file function

Your function is calling itself without approaching any convergance or something that will allow it to end. Therefore it will run forever and eventually out of memory (hence the error). Try splitting it up into a script and a function as so:

Script:

 %creating window of plot from -5 to 50 using stepsize 0.25 for t x-axis
 %t should be on the x axis, v should be on the y axis
 k=0; 
for i= -5:.25:50
    k = k+1;
    t(k)=i;
    v(k)=vPieceWise(t(k));
end 
plot(t,v);
 
figure
plot(t,v);
hold on

Function:

%Part A: Mfile function to compute v as a function of t
function v = vPieceWise(t)
 if (t < 0)
        v = 0;
    elseif (0 <= t)&&(8<=16)
        v = -5*t+10*t.^2;
    elseif (8<=16)&&(t<=16)
        v = 624 - 3*t;
    elseif (t<=16)&&(t<=26)
        v = 12*(t-16).^2+36*t;
    elseif (26<t)
        v = 2136*exp(-0.1*(t-26));
 end

Best Answer

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MATLAB: What happens if a MATLAB executable (GUI for example) runs into an erro while running

MATLAB: M-file function

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