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How to Check dimension mismatch of an element?

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tabw
tabw 2014-8-20
回答： Iain 2014-8-20
My question is a not very clear.
EG let s say, q , 1X2 array. q(1)=1 q(2)=2 q(3) does not exist
What I want is that I need to Check q(3) exist or not. If q(3) does not exist, break the while loop.
How to write the code to do that
I tried t=isempty(q(3)); However, it is not empty but not existing. So how to do that?
Thanks

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Iain
Iain 2014-8-20
numel(q) < 3

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