how can I avoid this error: Error using eig EIG did not converge.

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I want to find eigenvalu and eigenvector using "eig" function in matlab, but sometimes I get this error:

Error using eig EIG did not converge.

how can I avoid this error or what can I do the code run again automatically if this error happens?

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Answer 1

Jan 2013-7-5

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Are you looking for TRY/CATCH?

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mim 2013-7-5

what's that? and how it can help me?

Jan 2017-3-21

在 MATLAB Online 中打开

You explained, that your code fails sometimes. Then including the failing command in TRY/CATCH allows to run a fallback method or some error handling:

try
  [V, D] = eig(X);
catch ME
  warning(ME.message);
  [V,D] = EIG(X, 'nobalance');  % For example
end

It depends on your calculations, if the problem can be avoided or what "automatic" can help get the wanted result. Without knowing any details about your code, I can suggest only a general strategy.

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