parameter must specify a logical value. What is a logical value?

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Max
Max 2012-5-31
Hi, I've got the following problem with Simulink Design Verifier. I'm trying to extract a subsystem with the sldvextract function. Doing that, I get the following error message:
Error using sldvextract (line 57)
Invalid usage of sldvextract. The showModel parameter must specify a logical value.
Error in SLDV_TestGeneration (line 30)
newModel = sldvextract('Test_Harness_Verification_small/WMS Water Management', false);
I also tried true, I also tried 0, I also tried 'false', nothing worked. Perhaps I just don't see the failure. Can you help me?

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回答（3 个）

Wayne King
Wayne King 2012-5-31
a logical value would be
x = logical(0);
x = logical(1);
or
x = false;
x = true;
You do not want to put 'false', that is just a string.
  2 个评论
Max
Max 2012-5-31
I recognize that. But look at the parameters I give to sldvextract. It's exactly
false
Walter Roberson
Walter Roberson 2012-5-31
Out of curiosity, try specifying logical(0) -- I'm just thinking that maybe "false" has been given a different value in your context.

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Walter Roberson
Walter Roberson 2012-5-31
true and false should be valid according to the documentation
http://www.mathworks.com/help/toolbox/sldv/ref/sldvextract.html
Max
Max 2012-5-31
logical(0) works...
Is that an incident I should report?
  1 个评论
Walter Roberson
Walter Roberson 2012-5-31
If logic(0) works that suggest that "true" and "false" have been assigned something at that point. Can you display class(true) and size(true) ? And search the section to see if they were somehow defined in an obvious way?

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