Answered
the average state space model system using the Euler method
Hi @fatih In the simulation of the transfer function Gvd, you forgot to multiply the transfer function with the Duty Cycle 'D'....

8 months ago | 1

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Answered
How to input a NaN (as a nonexistent input variable) when evaluating a fuzzy system using evalfis
Hi @NaN I am revisiting the problem after more than a year and believe that two fuzzy systems (fis11 and fis12) should be creat...

8 months ago | 0

Answered
How to define the output of Fuzzy Controller as a change in the duty cycle for DC DC converter
Since the Simulink model is not provided to investigate why the fuzzy controller continues to produce a constant output value wh...

8 months ago | 0

Answered
How to adjust the parameters of membership function after the ANFIS is trained
Hi @sarara If the ANFIS model has been successfully trained and the performance is satisfactory, except for the aesthetic aspec...

8 months ago | 0

Answered
How to extrapolate the fuzzy system output to values beyond the universe of discourse
You can attempt to extrapolate the fuzzy system output to values beyond the universe of discourse by extending the existing rang...

8 months ago | 0

Answered
Does anyone know how to use an IF statement with ODE's? I am trying to create an IF statement sigma > 0 , tau > 0 if dx(3,1) > 0, dx(1,1) > 0 and sigma = 0 , tau = 0 otherwise
Hi @Christopher I simulated 5 cases below, including the interpretations of @Torsten and @William Rose, while keeping the setti...

8 months ago | 2

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Answered
Why does the ANFIS output range vary significantly despite perfect training accuracy?
Hi @Vandna To explain this phenomenon, consider the following example of a training data set with two inputs and one output. Ex...

8 months ago | 0

Answered
How to assess Rule Impact on Output MF Coverage and Prediction Accuracy in Fuzzy Systems
Hi @Saleh The R2024b new plotrule() function allows the user to see the firing strength and influence of each rule over the cov...

8 months ago | 0

Answered
How to create Fuzzy Cognitive Map from the Adjacency Matrix
Hi @Alagesan At the time your question was posted, it was challenging for @Arkadiy Turevskiy and others to assist you because t...

8 months ago | 0

Answered
How to create Fuzzy Membership Functions from data using fcm()
Hi @Pat The road traffic data in Table 1 are, in fact, incomplete. From our perspective, we cannot use the incomplete data to p...

8 months ago | 0

Answered
How to activate the 'Structure' button that appears inactive in Neuro-Fuzzy Designer
Hi @mekia The 'Structure' button appears to be greyed out initially after the data is loaded into the Neuro-Fuzzy Designer, ind...

8 months ago | 0

Answered
How to obtain the fuzzy input membership grades for all MFs given an input value
Hi @mhilmi Other than the evalfis() function, the evalmf() function can be used to obtain the membership function values. %% i...

8 months ago | 0

Answered
How to train membership functions and rules of the Mamdani FIS
Hi @chaks At the time your question was posted, there was no built-in function in the Fuzzy Logic Toolbox to tune the Mamdani F...

8 months ago | 0

Answered
How to create multiple Fuzzy Inference Systems (FIS) simultaneously without using a for-loop
Here is the for-loop approach to create multiple FIS models. inputData = [rand(10, 1), 10*rand(10, 1)-5]; outputData = ran...

8 months ago | 0

Answered
How to create multiple Fuzzy Inference Systems (FIS) simultaneously without using a for-loop
Hi @Spurthi You can create multiple FIS models simultaneously without using a for-loop by leveraging MATLAB's capability to han...

8 months ago | 0

Answered
Fuzzy Ruleviewer
Unlike the ruleview(fis) command, which generates a UI-based image, the new function plotrule(fis), introduced in the R2024b rel...

8 months ago | 0

Answered
How to use the Height Defuzzification method in Fuzzy Logic Toolbox
Hi @santhi krishna The height defuzzification method is indeed available in the Fuzzy Logic Toolbox and is associated with the ...

8 months ago | 0

Answered
How to perform 5-Fold Cross-Validation in MATLAB
Some of cross-validation techniques are available in the Classification Learner App and the Regression Learner App, as well as u...

8 months ago | 0

Answered
How to determine the number and range of Fuzzy Membership Functions
Hi @azarm In function approximation, it is true that the more uniformly spaced the distribution-type MFs are, the more details ...

8 months ago | 0

Answered
Warning: MATLAB may run out of memory if this FIS is tuned using ANFIS
Hi @Mhmmd Sjj and @Yundi Huang If you use the "Grid Partitioning" method for the nine inputs in ANFIS training, MATLAB may run ...

8 months ago | 0

Answered
The settling time in matlab differs from the calculated value
Hi @fatih From the following computations and the step response plot, you may gain insight into how the actual settling time is...

8 months ago | 1

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Answered
How to make an infinite interval for an input variable in fuzzy logic
Hi @Yuri Khudyakov While it is impossible to have an infinite interval when designing the universe of discourse for a fuzzy var...

8 months ago | 0

Answered
How to determine the firing level for non-singleton inputs - A fuzzy logic problem
Hi @Emanuel With all the membership functions well-defined and the number of fuzzy rules sufficient (), using specific function...

8 months ago | 0

Answered
How to design the switch mechanism for Hybrid fuzzy PID controller
Hi @Andrei Mihai You can use the concept of the Takagi–Sugeno (T–S) fuzzy system. Unfortunately, as of R2024b, the Fuzzy Logic ...

8 months ago | 0

Answered
How to design a Fuzzy Controller for the Plant 1/(s² + 2·s + 100) to track the Reference signal
Hi @salman saeed The plant has a low DC gain of and a relatively small damping coefficient of 2. If we apply a static gain of ...

8 months ago | 0

Answered
Display problem of membership functions in Fuzzy Logic Designer
Hi @hgrlk In the older Fuzzy Logic Designer UI tool (R2022a and earlier), the default number of plot points is 181, as indicate...

8 months ago | 0

Answered
How to plot a gaussmf in simulink?
The Gaussian MF block behaves as expected mathematically. If the output signal deviates from your expectations, it may be due to...

8 months ago | 0

Answered
How to create sigmoidal membership functions? Need help with parameter 'a'
Theorem: The logistic sigmoidal membership function is given by where the membership values are computed for each input , and...

8 months ago | 0

Answered
Support and core of a fuzzy set in matlab
Crisp sets can be created using linear saturation functions such as linzmf() and linsmf(). Before these two functions were intro...

8 months ago | 0

Answered
Vectorial use of membership functions
Here is a demo in which six different S-shaped membership functions are generated and evaluated at a target input using a for-lo...

8 months ago | 0