Request to help in sorting an error in simulink

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SANTOSH
SANTOSH 2013-1-21
Hi in my project while transferring data from 1 functional block to another i encountered the below error, where if i run the code in matlab err1 has data but if i run in simulink it is displaying following error please help me Thanks in advance
"Inferred size for data 'err1' (#59) is empty, which is invalid for a Simulink signal."
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Kaustubha Govind
Kaustubha Govind 2013-1-21
I'm assuming this is in a MATLAB Function block? How does your MATLAB code in the block define 'err1'?

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Walter Roberson
Walter Roberson 2013-1-21
You could get that if your code builds up "err1" dynamically, something like
err1 = [];
for K = 1 : 10
err1 = [err1 K];
end
Instead you should allocate err1 as the maximum size immediately on the first assignment to it. I seem to recall that you can reduce the size later, but not increase it.

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