Fangjun Jiang
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Professional Interests: Model-Based Development
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How can i add linear second-order transfer function to the simulink system?
drag and drop this block from library https://www.mathworks.com/help/simulink/slref/transferfcn.html
1 day ago | 0
Where is help relop?
It is true. The explanation: \Program Files\MATLAB\R2019b\toolbox\matlab\ops\relop.m is gone in R2020a, that is why "help relo...
3 days ago | 1
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How to discover all submodels within a simulink model programmatically ?
Using the example model 'f14'. Play with some other options of find_system() f14; SubSysBlocks=find_system('f14','BlockType','...
4 days ago | 0
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How can I get archived documentation for a R2012b release?
These are the archived document. R2012b is not there. Follow link to contact support to see you can get it. https://www.mathwor...
4 days ago | 0
Unable to remove elements from array and I don't know why
Do the loop backward should resolve the problem. I hope you would understand the reason. for i=length(x):-1:1 Also, better to ...
6 days ago | 1
select values from matrix
loc=sub2ind(size(A),idx,1:size(A,2)); >> out=A(loc) out = 1 7 3 9 5
6 days ago | 1
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Variable sample time with different time values
This seemingly simple question is actually quite complex. The input data is non-periodic. To hit every value-changing data poi...
6 days ago | 0
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How do I keep unused root-Level Inports in the generated code
In your model configuration, search for "block reduction", un-check it. I assume you must have the root-level Inport blocks ter...
11 days ago | 0
Can I simulate a transfer function in simulink in real time and interact with the model using the GUI?
Yes, thought it requires this toolbox: Simulink Desktop Real-Time
11 days ago | 0
Error Unable to delete elements from this array because dimension 1 has fixed size 1000
You kept asking similar questions on this topic. You need to ask your question precisely and accurately. The key point for this ...
13 days ago | 0
Displaying images by using a variable
It can be done but less ideal. a=input('enter the number','s'); file=[a,'.jpg']; imshow(file); Better file=uigetfile('se...
14 days ago | 0
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Incorrect use of '=' operator
Both codes run properly if run alone. You can "clear all" and then try it. A potential problem is with inputdlg(). "agea" is a ...
14 days ago | 0
How to find the unused bus objects from base workspace in Simulink?
Simulink Data Dictionary (SLDD) has this capability. In fact, when you migrate base workspace to a .sldd file, it only migrates ...
14 days ago | 0
unable to get_param signal name , error in using for loop
Your code is correct, except that No "end" statement for the for-loop Remove the "{" and "}" lines (meant to enclose the for-...
14 days ago | 0
function with two inputs.
Run this to return two outputs height_cm=input('enter your height in cm: '); weight_kg=input('enter your weight in kg: ') [he...
1 month ago | 0
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Simulink can't see variables in base and model workspace
You need to add "A" as a parameter for the MATLAB Function block. Double click to open the "MATLAB Function" block editor, clic...
1 month ago | 0
License checkout failed. User/host not on INCLUDE list for Neural_Network_Toolbox.
When you see the toolbox after "ver" command, it means the toolbox is installed in your computer. You need a license file or che...
1 month ago | 0
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How can I plot a graph from Simulink while simulating?
Use the blocks from the Simulink, Dashboard library, e.g. Dashboard Scope block. https://www.mathworks.com/help/releases/R2020b...
1 month ago | 0
Remove "Offset" caption from a Simulink graph
Must be something else. I have R2020b Update 3. I tried and it didn't have "Offset=0" text. Check MATLAB preference, figure cop...
1 month ago | 1
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Simulink: Dragging blocks directly into connections
Draging and dropping the block to the line will always make it auto connected. I've verified this in R2020b. You just need to be...
1 month ago | 0
Simulink Control Design license, license checkout failed
Run this: flag=license('checkout','Simulink_Control_Design') license('inuse') To check if you have "Simulink Control Design...
1 month ago | 0
Loop for removing values from a column vector
%% v=[1 2 1 3 7 7 5 4 8 6 9 2]; for k=length(v):-1:2 if v(k)<=v(k-1) v(k)=[]; end end
1 month ago | 0
how to list first 50 prime number after 229 in 10 x5 matrix
a=primes(1000); b=a(a>229); c=reshape(b(1:50),10,5)
1 month ago | 0
Block Parameters are Always Deleted
That is expected behavior. I don't know why it was designed that way. To avoid the problem, do either one of these: Create the ...
1 month ago | 0
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Im Having issues making the IF conditions read the input placed from options.
use option=input('prompt','s') to enter a string, not numerical data
1 month ago | 0
I want MATLAB to trigger an event at 8:00 AM tomorrow, how would I do that?
No. That won't do it. You need to look into this. https://www.mathworks.com/help/releases/R2020b/matlab/ref/timer-class.html
1 month ago | 0
How to select specific elements of a matrix and save them in another matrix?
B=A([false;diff(A)>1])
1 month ago | 0
Legend: is it possible to remove the border while leaving the background color?
set( leg , 'fontsize' , 20 , 'location' , 'east', 'color' , 'g' , 'box' , 'on','edgecolor','g' )
1 month ago | 0
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