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How to resolve the error: the variable fuzout(1,i) cannot save fuzout = evalfis(fis, trainin)
Hi @redha wassim brahimi I am revisiting the problem after nearly three years. I created dummy data and resolved the issue invo...

9 meses hace | 0

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How to display the Output of a Fuzzy System in linguistic terms such as 'Good' or 'Bad'
Hi @sotna ledua Since your post lacks additional details about the fuzzy system, I will create a simple fuzzy system for explan...

9 meses hace | 0

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How to design the membership functions for error and change in error in a fuzzy logic controller
Hi @vinay kumar kraleti Since your description of the problem is a simple one-liner and lacks additional details, I will show t...

9 meses hace | 0

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Scatter plots and lines
Hi @Harvey Could you add a thick black line as indicated by the dotted lines? The dotted lines serve as a tracing task, helping...

9 meses hace | 0

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How can one fuzzify a Support Vector Regression (SVR) model?
If the data from the Support Vector Regression (SVR) model is available, it is possible to train an Adaptive Neuro-Fuzzy Inferen...

10 meses hace | 0

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How we can do sub-plot in one graph ?
There are three variables in the function F(t, x, y). I am unsure how you would like to plot these multivariate graphs. However,...

10 meses hace | 1

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Selecting which prominence to use with findpeaks
Hi @Henry Since you did not provide the data for the 5-peak graph, I created one that resembles the Five-Finger Mountain. Accor...

10 meses hace | 0

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How to generate 2-D Lookup Table data for the Fuzzy PID Controller
Hi @Zoran For simplicity, you can create three individual 2-D lookup tables for the three fuzzy outputs generated from a single...

10 meses hace | 0

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How to resolve the error: Undefined function or variable 'gensurfOptions'
The gensurfOptions() function was introduced in R2017a, and your problem was posted in May 2017. Since the R2017a release, it is...

10 meses hace | 0

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How to customize output membership functions for Sugeno fuzzy systems in Fuzzy Logic Designer
If the mathematical notation in the output equation "u1 = x2(sigma + ro)" indicates implied multiplication (or multiplication by...

10 meses hace | 0

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How to resolve the error using evalfis: 'Input data must have as many columns as input variables'
If the number of columns in the input data (N) differs from the number of input variables in the fuzzy system (NfisIn), such err...

10 meses hace | 0

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How to send the output of a fuzzy system to a function
Here is an example of how you can send the output of a fuzzy system to a function: %% load a fuzzy system fis = readfis("tippe...

10 meses hace | 0

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How to identify the parameters of each membership function in a fuzzy logic system
Hi @Sebti Rihab You can identify the parameters of each membership function (MF) in a designed fuzzy system using this simple s...

10 meses hace | 0

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How to fix errors when evaluating a Fuzzy System using custom membership functions
Hi @Oleksandr Rynas Designing custom membership functions can be enjoyable and provide a sense of satisfaction to fuzzy logic a...

10 meses hace | 0

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Should the number of fuzzy rules in ANFIS be equal to the number of input MFs?
Yes, if the Subtractive Clustering method is used to generate the initial fuzzy system in ANFIS. %% The McDonald's Logo x = ...

10 meses hace | 0

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How to design a Fuzzy System for only five data points
Hi @M Ali Naqvi Here is a demonstration of employing the Stone–Weierstrass theorem (instead of Taylor series) to design a relat...

10 meses hace | 0

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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'....

10 meses hace | 1

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 2

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 0

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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...

10 meses hace | 0