Fangjun Jiang
What is a model? Professional Interests: Model-Based Development
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Contribute at least one answer each month for 36 consecutive months
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Content Feed
Run a script on all files in a folder/subfolders
I think the approach here can be used. https://www.mathworks.com/matlabcentral/answers/1934245-want-to-iterate-over-subfolders-...
ungefär 10 timmar ago | 0
Load data from *.mat file with mask
For string parameters like folder and file name, you might not be able to pass it from the mask to the inside block parameter. I...
ungefär 10 timmar ago | 0
Convert osm data to xodr
Mathworks' RoadRunner can do it but if you don't have a license, try the open-source SUMO with its netconvert. https://sumo.dlr...
3 dagar ago | 0
Parameters of FunctionCall block in Simulink
Click "Help" to bring up the document. It is there. get_param(gcb,'FunctionPrototype') 'InputArgumentSpecifications' 'OutputA...
3 dagar ago | 0
Want to iterate over subfolders within folder
Files=dir('**/*.xlsx') will give you a list of all the .xlsx files in the folder and sub-folder. Observe Files(1), Files(2), .....
4 dagar ago | 0
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Is it possible to control where the ADC samples within a period? MATLAB Simulink C2000 F28379D
Not too many people noticed this. In the case of a discrete sample time, the vector is [Ts, To] where Ts is the sampling perio...
4 dagar ago | 0
Why can't the index variable of a for loop be stored in a structure or other array?
There is no mention of any requirement on the name of the index varialbe, here in the document for "for", https://www.mathwork...
5 dagar ago | 0
How to obtain a vector (A) of 11 rows (output MATLAB Function block), from a vector (B) of 501 rows (input to the MATLAB Function block)?.
The straight solution is to use below. function y=f(A,B) temp=sqrt((A).^2+(B).^2); y=temp(1:49:450); Simulink is strict on k...
6 dagar ago | 0
Using Try/For loop to allocate correct serial port number
See help document for "break" and "continue" for k=1:100 port=sprintf('COM%d',k); try ND280 = serialport(por...
6 dagar ago | 0
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How to fetch the documentation content of a Doc block?
See this Answer. https://www.mathworks.com/matlabcentral/answers/521695-my-docblock-data-doesn-t-update-programmatically
6 dagar ago | 0
update a parameter in function block each timestep in simulink
Use the "Ramp" block to generate such a signal.
12 dagar ago | 0
Simulink, simout problem
The error is from the Simulink model itself. It can't determine the size of certain signals, most likely from the MATLAB Functio...
13 dagar ago | 0
Error evaluating 'InitFcn' callback of block_diagram 'SIMULINK_MODEL'. Callback string is 'MATLAB_MODEL' Caused by: Error using MATLAB_MODEL
Most likely, it is looking for a file named "MATLAB_MODEL_v20180919.m". Search for that file and check if the folder is in your ...
15 dagar ago | 0
Simulink: changing gain based on input
For this, it sounds like you just need a Gain block. Set the gain value to be 255/pi, when the input is 0, the output is 0. When...
15 dagar ago | 0
I want to correct this command please
The three equations form a non-linear ODE with three independent variables (x,y,z). Because they are coupled, you can't solve th...
17 dagar ago | 1
Why can I break Simulink library links by right-clicking in the model, but can't programmatically?
"Implicit" means Block resides in library block and is itself not a link to a library block. Suppose that A is a link to a subsy...
18 dagar ago | 0
Extracting values from a string - Matlab
You got string array (" ") and char array( ' ') mixed. See which data format fits you better. ind = "i 1 1" ind(1) ind2=char(...
18 dagar ago | 0
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How to log signal data from simulink to matlab with higher time interval to avoid high data storage?
Set the "Decimate data" to be 300. It means log every 300th data. It may not guarantee 0.3 second if using variable step size so...
19 dagar ago | 1
| accepted
Find maximum value in a column of each cell in a large set of cell array?
c={rand(10),rand(11),rand(12)}; N=5; cellfun(@(M) max(M(:,N)),c)
20 dagar ago | 0
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I would like to convert data of double type to single type before code generation in 2020A Simulink, without using Cast blocks on most functions.
See this example Validate a Single-Precision Model
21 dagar ago | 0
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Unable to use the variable from workspace which is sent to the MATLAB workspace using 'To workspace' block of the Simulink.
"Unable to read file 'IEEE_14_Bus_System_SM_FFR.mat'. No such file or directory." Make sure you have that .mat file. Use Comman...
21 dagar ago | 0
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Returning output signals from a Simulink block to Matlab
Access Data in a MATLAB Function During Simulation
22 dagar ago | 0
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Does anyone know how I can connect a matlab function block with memory block and a controlled current source?
See this How to Use Globals with the MATLAB Function Block
22 dagar ago | 0
Modify In/Output Port names with a MATLAB script
Something like this: [~,~,InPortNames]=xlsread('ExcelFileName'); % read Excel file to get PortNames as a cell array InPorts=fi...
25 dagar ago | 0
Dynamic Modeling of Wheel-track Composite Vehicle
Vehicle Dynamics Blockset has dual track model as well as wheel/tire dynamics. Not sure if this meets your need or whether you h...
26 dagar ago | 0
Is it possible to convert a referenced Configset to a regular Configset that is not referenced from an sldd?
copy, attach and setActive. similar to the example here? https://www.mathworks.com/help/simulink/slref/simulink.configsetref.ht...
26 dagar ago | 0
I noticed that some GoTo and From signals (input port no. 1) are not connected properly after the transfer (from one system to another system) of the model.
The number on top of the line indicates the size of the signal. "1" means a scalar. "2" means 1x2 or 2x1 vector. "?" means it ca...
26 dagar ago | 0
| accepted
How to achieve fan rpm with increasing step size?
The "step" increase you saw is probably determined by your lookup data and simulation step size. What you really need is proba...
28 dagar ago | 0
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Does anyone know which Simulink Block this is?
It looks like the "Fcn" block specified as "u(1)". It is used to pick out the first element. https://www.mathworks.com/help/re...
28 dagar ago | 1
| accepted
How to skip an empty value
You can use isempty(rp) to check, and then ignore as needed.
28 dagar ago | 0
| accepted
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