Store variable to file in Simulink

2014 9 15
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更新时间：2014 9 15
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Dear MATLAB community,
I am trying to store an array of vector variable to a file in Simulink from a MATLAB function block.
I have tried
(1)'save('savevec.dat', 'vec');'
but function 'save' is not suppoorted as coder.extrinsic.
I have also tried
(2)'matlab.io.saveVariablesToScript('savevec.m', 'vec')'
but Simulink does not seem to be able to detect variable 'vec' in case (2).
I am reluctant to use Simulink's sink 'to file' block, as vec suppose to be internal calculations.
Thanks in advance for your help.
Regards.

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Loong
Loong 2014-9-15

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It turns out that what I needed are dlmwrite, dlmread..

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Sean de Wolski
Sean de Wolski 2014-9-15

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Why not make vec a second output of the function&block and then use the "To File" block?

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Loong
Loong 2014-9-15
编辑：Loong 2014-9-15
Hi, Thanks for the reply. My vec is approximately 100k array in size. I made 'vec' persistent for each Simulink cycle. When I try to make 'vec' as additional output, I can no longer make 'vec' persistent and I will get errors like "Undefined function or variable 'vec'. The first assignment to a local variable determines its class." My objective is to store 'vec' either to a file or to a workspace, preferably called within the MATLAB function block run by Simulink. Any idea? Thanks.

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