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Fangjun Jiang


Last seen: 1 day ago
2,912 total contributions since 2011

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Professional Interests: Model-Based Development

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Answered
Is it possible to add a custom button in the Simulink's model editor Explorer Bar
This Edit time Model Advisor checking seems to be a good solution. Check the lastest version to see if it can be done on a custo...

2 days ago | 1

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Answered
Use of sampletime in a constant block simulink
Double click the block, click 'Help', see the explaination for 'sample time'.

2 days ago | 0

Answered
How to upgrade Matlab Online?
It seems that today is the release date for R2020b. You might have caught the interim switch of MATLAB Online. Wait a few days i...

3 days ago | 0

Answered
Set of sequnce number
%% A=1:8; N=numel(A); Multiply=10.^(N-1:-1:0)'; B=A*Multiply C=dec2hex(B)

3 days ago | 0

Answered
How to programmatically "click" the block mask Apply or OK button.
I don't understand the problem. If the block has a mask of a text area, when user opens the mask by double_clicking the block,...

3 days ago | 0

Answered
Programmatically duplicate signal in Simulink
add_line('SubSysBlock','InportBlock/1','MuxBlock/1','autorouting','on') loop N times

3 days ago | 1

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Answered
How to create a bus for the scenario reader?
To resolve the error, open the MATLAB Function, click "Edit Data", Select "Bus: <object name>" from the dropdown list for "typ...

3 days ago | 0

Answered
Loading static library to be implemented in Simulink
Available since R2018b C Caller block

4 days ago | 0

Answered
I need help with plotting Simulink output in Matlab
It depends on your saving format. It looks like you have "single simulation output" checked and the format is "dataset". Press C...

4 days ago | 1

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Answered
simulink/simscape final state 'cannot find a matching block state to element 135' output by the same model
This is frustrating! Try this, note the difference between 'Save complete SimState in final state' and 'Save Final States' http...

5 days ago | 0

Answered
Programmatically Change Preferences?
to save matfiles as version 7.3, use save(FILENAME, ..., VERSION) to set MATLAB preference, https://www.mathworks.com/help/rele...

5 days ago | 0

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Answered
comparing table values using isequal
try TF = isequal (M.Var2{i},'f')

5 days ago | 1

Answered
generating/extracting a simulink restart state from system output? ?problem with 'discrete' blocks?
Just got this: https://www.mathworks.com/help/simulink/slref/saving-and-restoring-simulation-operating-point.html

5 days ago | 0

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Answered
Inquiry of the error of output port data type which can't be fixed
'BusMultiObjectTracker1' is likely a Simulink.Bus object. Check it in base workspace or your Simulink Data Dictionary. The numbe...

5 days ago | 0

Answered
How can I get the variant names inside a Simulink variant subsystem
If you run find_system(), set the 'Variants' option (use 'AllVariants'). For subsystem inside the variant subsystem, the propert...

6 days ago | 0

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Answered
Use the variable of function for title of a figure
Are you sure? put inputname(1) inside the function. It should show name as "MyStruct" if you call it with fullplot(MyStruct)

6 days ago | 1

Answered
Simulink scope not displaying values.
Most likely the settings of the Scope. Click View, Style, set the "Marker" to be none. I've answered at least twice on similar...

9 days ago | 0

Answered
Modifying parameters for S-function in a model which is compiled / run in rapid accelerator mode
Before the configureForDeployment line, use set_param('S_Function_Block','Param_Name','Param_Value') to change the parameter for...

9 days ago | 0

Answered
How to start a simulation in steady-state ?
In Configuration Parameters, Data Import/Export, you can check and specify "Initial State". You can also save "States" for you...

9 days ago | 0

Answered
'keyboard' calls fail outside try..catch when try..catch contains a keyboard call
There is no problem running the code in R2020a. run "which -all keyboard" to see if there are other function called keyboard D...

10 days ago | 0

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Answered
How to make recursion faster in Matlab (Matlab seems to forget steps already done)?
You might not need to use recursive function to get the solution. Instead, just calculate the result as a nxn matrix, but, it ne...

10 days ago | 0

Answered
How to make recursion faster in Matlab (Matlab seems to forget steps already done)?
The code can be simplified first. I see the potential saving. f(a,1,20) depends on f(a,2,20) and f(a,1,19), which depends on f...

10 days ago | 0

Answered
Simulink simulation to confirm the change of a state after n number of cycles
Use a "Detect Change" block and a "Counter" block. If no change is detected for "Nb_cycles" times, the output is ture, otherwis...

10 days ago | 0

Answered
Problem with Controlled voltage source
In ideal circuit, connecting a capacitor in pararell with a voltage source would short-circuit the voltage source (when initiall...

11 days ago | 1

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Answered
Sizeof error and Z is a scalar/Vector but needs to be matrix
sizeof() is not a function. Maybe you want to use ndims()

11 days ago | 0

Answered
Can I access the Unit of a Simulink.Parameter in a Mask?
Yes but it is not very elegant. "INPUTPARAM" is the name of your mask variable. You have to follow that to get the name of the...

11 days ago | 0

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Answered
Error using cos.Not enough input arguments.
try this line by line y=pi (cos(y))^2 cos^2*y

16 days ago | 0

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Answered
Inline to Anonymous Function
x =@(t) 5*sin(2*pi*1*t).*exp(-.4*t)'

17 days ago | 0

Answered
How i convert a phrase like;(_x_1, or %diff) into a valid matlab variable? That i need to create a function?
If just want to create a valid MATLAB variable name, genvarname('_x_1') genvarname('%diff') matlab.lang.makeValidName('%diff'...

17 days ago | 0

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Answered
Trying to plot a step response of a given transfer function.
You probably meant tf1=p21. p2 itself is improper. I assume you know what it means in control theory.

18 days ago | 1

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