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I haven't defined syms x but solve function gives me values depend on x
Hi @Cahit Semih Do you have any updates regarding your optimization efforts? The following solution is derived from your eigen...
7 hours ago | 0
how to repeat a code until a certain input has been recieved
Hi @zach Here is a simple example estimate the value of using the while loop to infinitely repeat the execution of instruction...
22 hours ago | 0
| accepted
How does the expfit function... functions
This is most likely because the expfit() function does not belong to the Curve Fitting Toolbox. Furthermore, the function is mor...
1 day ago | 0
Fuzzy Logic Controller Block in Simulink Doesn't Show Two Inputs
Hi @ali If there is more than one input, you need to use the Mux block to combine the input signals into a virtual signal vecto...
5 days ago | 0
| accepted
Can MATLAB handle Fuzzy Derivatives and plotting in Fuzzy Logic contexts?
Hi @salim You can certainly recommend the Fuzzy Logic Toolbox to your friend. However, the toolbox is primarily focused on the ...
6 days ago | 1
| accepted
Tips for solving Matrix/Linear Algebra Problems with matlab
Hi @Annie RLC Circuit analysis typically involves a dynamic system. Thus, you will need to model it in the form of a differenti...
7 days ago | 0
| accepted
given the function f(x)=X^3 - 6X^2+9X. Find the first derivative of the function of f(x)
You can use the first derivative formula from Larson/Edwards Calculus of a Single Variable textbook. For more info, please look...
7 days ago | 0
How to create .fis file with 2042 numerical values as input for a fuzzy system
Hi @karthika gurusamy A FIS file (*.fis) can only be created when saving the fuzzy inference system (FIS) object to the current...
8 days ago | 0
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...
8 days ago | 0
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...
8 days ago | 0
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...
8 days ago | 0
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...
8 days ago | 0
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 ...
10 days ago | 0
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...
10 days ago | 0
Solving math by equal
Hi @cong In my previous answer, the margin() function cannot accurately determine the phase margin because there are three gain...
10 days ago | 0
| accepted
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...
11 days ago | 0
| accepted
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 ...
11 days ago | 1
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...
11 days ago | 1
Optimization_Toolbox使用问题
Hi @蒙恩 This graphallshortestpaths command has been removed since R2022b.
11 days ago | 1
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...
12 days ago | 0
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 ...
13 days ago | 0
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...
13 days ago | 0
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(...
13 days ago | 0
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 ...
13 days ago | 0
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...
14 days ago | 0
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...
14 days ago | 0
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...
14 days ago | 0
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...
14 days ago | 0
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...
15 days ago | 0
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...
15 days ago | 0
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