Is there any function can compute the value of sgn?
3 views (last 30 days)
Show older comments
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,
0 Comments
Accepted Answer
Star Strider
on 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.
2 Comments
Star Strider
on 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.
More Answers (0)
See Also
Categories
Find more on Histograms in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!