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What should I do if I get "Error: Invalid FIS. PARAMS field of constant output MF must contain a scalar"
Hi @Nithya Kancherla and @Iman Ansari The conclusion part of the Sugeno If–Then inference does not have the typical output memb...

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What should I do if I get "Error: Specified FIS file contains invalid type-1 membership function"
Hi @alper demir This error most likely indicates that your FIS file may have been corrupted for an unknown reason when the modi...

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What should I do if I get "Error in ruleview"
This error most likely indicates that your fuzzy system is either incorrectly designed or may have been corrupted due to incorre...

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How to design a Fuzzy System for the Fuzzy Relation (A∪C)∩(B∪D)
Hi @Johnson Obari The response is a bit late, but this is an interesting problem. If you use three fuzzy sets for each of the f...

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I am having trouble getting the engine speed to 0 rpm when simulating a series hybrid vehicle controller.
Hi @Thang The Simulink file contains many components, including blocks from Stateflow and Simscape. Could you provide the same ...

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How to write nonlinear optimisation model with multiple constraints with triangular fuzzy number data
Hi @Rajkumar Verma Most parts of the code function correctly. However, you need to test it by inputting desired values into the...

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Solving math by equal
Hi @cong In my previous answer, the margin() function cannot accurately determine the phase margin because there are three gain...

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How can i draw this plot?
Hi @S AsZ Perhaps try this: https://www.mathworks.com/help/matlab/ref/colormap.html#buc3wsn-1-map sphere(100) colormap coppe...

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Solving math by equal
Hi @cong You can assign a value to K, compute the transfer function G(s), and then use the margin(G) command to find the phase ...

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Optimization_Toolbox使用问题
Hi @蒙恩 You can use the distances() function as the alternative. W = [.41 .99 .51 .32 .15 .45 .38 .32 .36 .29 .21]; DG = sp...

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Optimization_Toolbox使用问题
Hi @蒙恩 This graphallshortestpaths command has been removed since R2022b.

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Beantwortet
How to get an output value for a Mamdani fuzzy system using evalfis() command
It is likely simpler than you have anticipated if you design the Mamdani system correctly according to mathematical reasoning pr...

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How to design a fuzzy decision-making framework for a HVAC system incorporating 'Is Any' logic
In boolean logic, "is any" represents a conditional statement where if at least one condition within a set is true, the overall ...

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How to improve the simulation speed of a system slowed by the addition of a Fuzzy System
Hi @Ahmed Alshamrany If your fuzzy system is of the Mamdani type (as is the case for 99% of beginner users), and it has many in...

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How to generate 2-D Lookup Table data for a 3-Output Fuzzy Logic System
Hi @Aditya Gandhi The code in your image is flawed, as it should have used 'LookUpTableData(j,i)' instead of 'LookUpTableData(...

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How to make ANFIS fuzzy system to produce exact binary outputs (0 or 1)
Hi @Dhandapani.S It appears you are concerned that ANFIS may not be suitable for your needs, particularly if you require exact ...

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How to extract Fuzzy Rules from Data and determine their adequacy for classification
Hi @eman If the data size is relatively small and non-chaotic, then both tunefis() and anfis() algorithms can be used to to unc...

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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...

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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...

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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...

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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...

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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...

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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,...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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