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Fangjun Jiang


Last seen: 2 días hace |  Con actividad desde 2011

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What is a model? Professional Interests: Model-Based Development

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Respondida
运行s-function Output argument "sys" (and possibly others) not assigned a value in the execution with "ctrl>mdlOutputs" function.
Probably a typo at the last line of this code below. Should be 'sys', not 'sym'. Also need to add a line 'end' to finish this fu...

alrededor de 1 mes hace | 0

Respondida
my for loop stop after the first valid number has been found how do i fix this
Use "result_1", no need to create "answer_1" numbers=1:100; result_1=[]; for i =1:numel(numbers); num=numbers(i); i...

3 meses hace | 0

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Respondida
hi i started the matlab onramp course and im stuck on this further practice question i wld appreciate if anyone cld help me or even give an hint
density=10:10:100 index=[1 3 6] SelectedDensityValue=density(index)

3 meses hace | 0

Respondida
Questions regarding Unit Delay block initial condition and model recompilation
Use Simulink.Parameter Specify its storage class as "ImportFromFile" and specify a HeaderFile name. When the code is generated...

3 meses hace | 0

Respondida
Why am I getting a computed maximum size is not bounded error in a MATLAB Function block in Simulink R2021a even when using assert?
The Simulink diagnostic is probably not designed to read the assert() function. The proper way for this is to define those data...

3 meses hace | 0

Respondida
How do I use the unit per mille in Simulink parameters and ports?
It is "m" for "milli". "mille" means "a thousand", that is "k" for "kilo".

3 meses hace | 0

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switching of svpwm is not working . it is not showing staircase mode in scope
To convert radians to degree, the Gain should be 180/pi. You had it as pi/180. That seems to be the cause. The logic seems corr...

3 meses hace | 0

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Respondida
how to write a program combininb name and age?
No Switch statement is needed. This practice is to get the input and put it in the right format. help input help sprintf

3 meses hace | 1

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Is it possible to access the blocks inside the model under test from the test harness in custom criteria script of simulink test?
I think the testing harness model is using the Model block to reference the model under test, so you can't access the block dire...

3 meses hace | 0

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Respondida
Why do I receive "Error in port widths or dimensions"?
Simulink uses forward propagation and back propagation to determine the size of the signal. There is a conflict in this propagat...

4 meses hace | 0

Respondida
How to use global variable in MATLAB discrete-event system block (not MATLAB Function Blocks)?
Use Global Variables in System Objects https://www.mathworks.com/help/simulink/ug/use-global-variables-in-system-objects.html#b...

4 meses hace | 0

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Respondida
How to save a MATLAB Simulink based simulaton with scopes data intact for future viewing?
Simulation Manager https://www.mathworks.com/help/simulink/slref/simulationmanager.html

4 meses hace | 0

Respondida
How to save in Simulink output/results to different files
SDI datastore and tall array https://www.mathworks.com/help/simulink/slref/matlab.io.datastore.sdidatastore.html

4 meses hace | 1

Respondida
I have some calcualted variable in simulink which will create an array is there a block to work this out?
https://www.mathworks.com/help/simulink/slref/selector.html

4 meses hace | 0

Respondida
How can I save the text in the model workspace variable description?
mw=get_param(bdroot,'ModelWorkspace'); a=mw.getVariable('Param'); >> s=get(a,'Description') s = 'abc'

4 meses hace | 0

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Respondida
get Simulink block libinfo in find_system
'ReferenceBlock' is a block property. 'Library' is not. You are probably looking for 'LinkStatus'. model='f14'; open_system(mo...

4 meses hace | 0

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Respondida
How to adjust font size in Matlab editor
Fonts, Custom, Editor

4 meses hace | 0

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Respondida
Output single Timetable from Simulink when some logged signals are not doubles
I did an example in R2022b. It didn't have problem logging and extracting different data types in a single table. Your problem m...

4 meses hace | 0

Respondida
How can i edit my code which works on r2014b version at work but not on my personal r2024a version?
No matching files named 'XXXXXX' were found. This is the error. It should give you a clue. Put a break point at line 239 where...

4 meses hace | 0

Respondida
Simulink Mask won't display parameter values
Variable 'label' is inside the function. It is not visible in the mask workspace. disp(label), not disp('label') Use the follo...

4 meses hace | 0

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Respondida
How to programmatically change the command window text size?
https://www.mathworks.com/help/matlab/matlab_external/access-and-modify-settings.html

4 meses hace | 0

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GUIDE code from pre 2015 need to access the button press function and "programatically press the button" from a different m file
In the .m file created for your GUIDE application, there is a function called SaveSpectrumPlotButton_Callback() defined. Current...

4 meses hace | 0

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I encountered error though the input data to INS block is exactly 3-column
The input needs to be N-by-3 real-valued matrix. You need to use the "Vector Concatenate" block, instead of the "Bus Creator" b...

4 meses hace | 0

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Hi. Manual variant sink.
>> get_param(gcb,'sw') ans = '1' >> get_param(gcb,'sw') ans = '0' >> get_param(gcb, 'LabelModeActiveChoice') ans ...

5 meses hace | 0

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Is it posibble to import a simulink model into Unreal Engine simulation ?
https://www.mathworks.com/help/sl3d/create-3d-simulation-in-unreal-engine-environment.html

5 meses hace | 0

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about test point during code generation
https://www.mathworks.com/help/ecoder/ref/ignoretestpointsignals.html If it is a test point, code generation makes sure to allo...

5 meses hace | 0

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Respondida
Alternatives to 'For Each subsystem' that are compatible with global data outside the subsystem
The number of input and output will be different with configurations "N" In that case, the value of "N" is determined by the pa...

5 meses hace | 0

Respondida
How to pick all elements from a set that satisfy a certain condition?
A=[-5,-4,-3,-2,-1,0,1,2,3,4,5]; index=(A+A')==1; [I,J]=find(index); A([I,J])

5 meses hace | 0

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Respondida
Debug Simulink MATLAB funciton block inside for each subsystem
Yes. I can confirm this behavior in R2022b. When setting the loop number N to be 1, you will see the normal debugging behavior...

5 meses hace | 0

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Respondida
How to initialize instance of class in Simulink Global Workspace?
If involving object/class, you might want to use MATLAB System block https://www.mathworks.com/help/simulink/slref/matlabsystem...

5 meses hace | 0

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