Chen Lin
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NOMBRE MOYEN DE LIKES
Contribute at least one answer each month for 36 consecutive months
Awarded to Fangjun Jiang on 04 Mar 2020
Answer 10 questions that were unanswered for more than 30 days
Awarded to Fangjun Jiang on 17 Oct 2019
Publish your first review
Awarded to Fangjun Jiang on 09 Oct 2019
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Awarded to Fangjun Jiang on 20 Jul 2017
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Awarded to Fangjun Jiang on 20 Jul 2017
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Solve a problem for the first time
Awarded to Fangjun Jiang on 27 Jun 2012
Feeds
plot the function which is dependent on x, y and z with x, y and z on three axis.
You are asking for the impossible, the visualization of the 4th dimension. I thought it was impossible in three dimentional wo...
environ 21 heures il y a | 0
Simulink source commands finding
Use the Signal Editor block https://www.mathworks.com/help/simulink/slref/signaleditorblock.html or in older version, it is ca...
2 jours il y a | 0
Simulink: Mask parameter fails to bind to block port
It is more involved for this task. I hope the attached model (in R2022b) make it easier. In your model, the two inports are cal...
3 jours il y a | 0
| A accepté
Stop Simulink Model Update via Callback
Instead of sldiagviewer.reportError(errMsg), if you do error(errMsg), it should stop.
4 jours il y a | 0
| A accepté
Reset value of Ramp block to be used in Matlab Fctn block
I think it is possible. Use the "State Writer" block. But using the "Integrator" block would be easier. Enable its external res...
4 jours il y a | 0
How to write overline on top of a word in title of a plot?
title(["Some text $\bar{XX}/V$","Some other text"], 'Interpreter', 'LaTeX')
4 jours il y a | 1
| A accepté
Hi, i want to plot two columns of values of data from excel, the graph includes a zero while the excel sheet doesn't. Here is my code and the graph I got vs what I should get
I think the last data point (un-wanted) is at (0,0). Your data shows it. You can look at the value of q and D_q.
4 jours il y a | 0
IF statement if == "A variable" not working
Most likely it is a floating point data equal comparison problem. b is somewhere near 9999 but not exactly. Use round() or integ...
4 jours il y a | 0
array operations in app designer
Need to specify the .Value property? If not, just pause the code and check its value, app.uhly_array and app.theta1 app.delta1....
5 jours il y a | 0
| A accepté
Simulink Discrete Filter Sample Time
See the note on this page. To set it in command line set_param('BlockPath','SampleTime','0.1') https://www.mathworks.com/help...
5 jours il y a | 1
"Unrecognized method, property, or field 'Type' for class 'matlab.ui.control.WebComponent'."
I think app.tabFiles.Children is an array of handles. Try tf = strcmp(get(app.tabFiles.Children,'Type'), 'uistatebutton')
5 jours il y a | 0
| A accepté
The code is correct, however I keep getting this error: Invalid color, marker, or line style.
See the possible marker symbol and line symbol help plot Various line types, plot symbols and colors may be obtained with P...
7 jours il y a | 0
| A accepté
'Could not determine the size of this expression' in simulink function block
In general, it is better to specify the size (number of rows and columns) of all the inputs, outputs and parameters that are use...
7 jours il y a | 0
| A accepté
variable duty ratio to a switch at different time intervals
I assume this is in Simulink. You can use an AND logic block or Product block to multiply two signals. One is the regular 40% du...
7 jours il y a | 0
| A accepté
How to use Workspace Variable value instead Sldd value in Simulink model.
Check the "Enable model access to base workspace" at Model Property, External Data tab? https://www.mathworks.com/help/simulink...
7 jours il y a | 0
| A accepté
Is there a nice way to discretely simulate an LTI system using a function block in Simulink?
Yes. For sys = ss(A,B,C,D,ts), the following equation should be used to advance the simulation step by step. Make sure to use c2...
8 jours il y a | 0
| A accepté
How can I solve this error??
There is nothing wrong in these commands. The simulation was being started but there is problem in your scenaio. Switch to the...
9 jours il y a | 0
| A accepté
Building an array of strings that might be empty
That is because app.XminEditField.Value and etc are char array, not string use string() s=["a","","b","c"] c=['a','','b','ded...
9 jours il y a | 0
How computationally intensive are switch case action blocks in Simulink?
Yes. More cases will not increase the computation load. Only the activated cases will be executed. It is called the Condtionally...
10 jours il y a | 0
| A accepté
How to get variable from Simulink model workspace for use with Multiple Simulations?
I think you are looking for model parameter argument. Follow this Q&A. https://www.mathworks.com/matlabcentral/answers/2101666-...
10 jours il y a | 0
How to fix this error? : Error:Index exceeds the number of array elements. Index must not exceed 4.
All the Winding parameters need to have 5 elements (including both the left and right side). You have only 4.
10 jours il y a | 0
| A accepté
Is it possible to use a parameter within the "To Workspace" block?
I remember answering the same question before. The answer is "No" by value passing, but you could do it using set_param(). For ...
10 jours il y a | 0
Any good resources on how to use "Matrix Interpolation" block in simulink?
What you need is the "2-D Lookup Table" block. Drag that from the library and select "Nearest" at the "Algorithm" tab. The Help ...
10 jours il y a | 0
| A accepté
In GUI, RangeSlider 's Value may have a wrong type
No confusion. You will find X = app. FilterHzSlider.Value; X is returned as [50 1000]. So you would do minFrq=X(1); maxFrq...
11 jours il y a | 1
| A accepté
Function call failed when calling matlab function inside function block
Okay, fg_chua() is generated by matlabFunction(). You need to specify the size of ux in the MATLAB Function block. Open the MAT...
11 jours il y a | 0
| A accepté
How to change the parameter value at run time in Matlab Simulink
This is not "change the parameter value at run time". Rather, it is to mimic a dynamic signal. You can use many of the blocks in...
11 jours il y a | 0
Loading table from object from .mat file
If the table object in that .mat file is called MyTable, then after ParaDat=load('ParameterDatabase.mat'), you can access it by ...
13 jours il y a | 1
| A accepté
How to create a string array and access the elements without throwing "COMMAND must be a string scalar or character vector" error?
This error might be particular to the GBMD.loadDumpFile(). Can you try either one of these Make a temp variable, such as tempVa...
13 jours il y a | 1
| A accepté
change the value of a data structure field
s(3).Val='1'; s.Val [s.Val]=deal('2') s.Val
13 jours il y a | 0
| A accepté
Global variables in simulink - embedded coder
I think you can try this block. Put it inside the Subsystem and specify the sample time as -1, which inherits the interrupt. ht...
13 jours il y a | 0
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