Is there any function can compute the value of sgn?
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Sarah A
am 8 Aug. 2018
Kommentiert: Star Strider
am 9 Aug. 2018
Hello,
I read in a paper the following : sgn(A.B), where A and B are vectors. So what does that mean and is there any built in function that can do that? note that sgn is the sigmoid.
Regards,
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Star Strider
am 8 Aug. 2018
You can easily write your own:
sgn = @(x,a,c) 1./(1 + exp(-a.*(x-c))); % Create Function
x = 0:0.1:10;
y = sgn(x, 2, 4);
plot(x,y)
xlabel('sigmf, P = [2 4]')
ylim([-0.05 1.05])
This plot matches the one in the documentation.
Experiment to get the result you want.
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Star Strider
am 9 Aug. 2018
As always, my pleasure.
They are scaling constants for the membership function.
This may not be the version you want, however. If you have a description of your function and the arguments, and the context in which you are using it, we can get closer to creating it. There appear to be several versions of the sigmoid function.
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