how to have indication of matlab function stopped

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adi 2020-7-5

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编辑： dipak nigam 2020-7-5

Hi,

is there a way to have an indication when matlab function stops?

lets say i have a function and i want to use another function in cases that the first one stopped/got stuck.

how can i do this?

thank you

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John D'Errico 2020-7-5

What do you mean by stopped/got stuck?

Are you asking how to know when another function seems stuck in an infinite loop?

Are you asking to know when a function has terminated running due to some error condition?

adi 2020-7-5

hi,

yes i want to know when a function has terminated running due to some error condition.

actually i work with the matlab fit function and in some curves i get the error of not being able to fit, therefore in these cases i would like to fit with another function- so i would like to have this indication so the program wont terminate.

thank you

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Answer 1

dipak nigam 2020-7-5

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编辑：dipak nigam 2020-7-5

As per my understanding, you want to run another function if your present function raises an 'error' or 'fails'. You can put the statements prone to failure in a try block and call the other function in a catch block to achieve this functionality.

Here you can find the documentation for the same-

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

Otherwise, you can use the condition statements if your current function does not raise an error.

https://www.mathworks.com/help/matlab/matlab_prog/conditional-statements.html

In the case your function just stops the execution and doesn't raises an error, i.e 'gets stuck' you can create a timer until the expected time-limit and then raise an exception/error yourself after that timer runs out. Try-catch statements can be used with timer to handle such cases.

You may get some idea here-

https://www.mathworks.com/help/matlab/matlab_prog/conditional-statements.html