How do I deploy singleton membership function in fuzzy logic output

38 views (last 30 days)
I’m deploying fuzzy logic with two inputs and a single out but the output should be singleton in simulink. Then I ask, how may I apply the fuzzy singleton membership function ?

Answers (1)

Sam Chak
Sam Chak on 22 Feb 2024
Here's how you can create fuzzy singleton membership functions. In this code snippet, I'm using three singletons.
% Fuzzy Singleton Outputs
fis = addOutput(fis, [-1 +1], 'Name', 'Out');
fis = addMF(fis, 'Out', 'constant', -1, 'Name', 'N'); % Negative output action
fis = addMF(fis, 'Out', 'constant', 0, 'Name', 'Z'); % No output action
fis = addMF(fis, 'Out', 'constant', +1, 'Name', 'P'); % Positive output action
  2 Comments
Sam Chak
Sam Chak on 24 Feb 2024
Your question initially revolved around the singleton membership function, so I focused solely on that aspect, drawing from this documentation detailing how to incorporate singleton MFs (constants) into a fuzzy output variable within the Sugeno fuzzy inference system (fis object).
Given your mention of constructing a fuzzy system with two inputs and a single output, I proceeded under the assumption that you had already successfully established a fuzzy system (fuzzydc.fis object) with two fuzzy inputs. If you're interested in building a fuzzy system entirely through MATLAB code, I recommend consulting this article:
Alternatively, if you prefer a more intuitive approach, I personally favor using the Fuzzy Logic Designer app. Its WYSIWYG (What You See Is What You Get) interface provides a user-friendly platform for visualizing and adjusting the design parameters of the fuzzy system.

Sign in to comment.

Categories

Find more on Fuzzy Logic Toolbox in Help Center and File Exchange

Products


Release

R2019a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!