Fangjun Jiang

Last seen: Today | Con actividad desde 2011

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

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How to make custom library in Simulink available to other users and in different versions?
If you have a newer version of MATLAB (e.g. R24b), you can save/export a Simulink model or library as older version (e.g. R23b),...

alrededor de 20 horas hace | 0

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how can I array the external inputs for code generation in Simulink embedded coder?
For the array case, you just need to specify the size of that Inport block. Keep in mind that you can't comibne multiple inputs ...

alrededor de 20 horas hace | 0

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Table.Properties.VariableNames will add ... to long Variable Names
I think the OP was referring to the three dots in the image in the header row. It is a display, @Alexander Szambor. If you drag...

5 días hace | 1

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How to call columns from table when heading names are variable dependent
use data.(MaxColumn). This is similar to dynamic field names like below. a.FirstColumn=1; ColumnName='FirstColumn' a.(ColumnN...

7 días hace | 0

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I am getting error for configurable subsystem in R2024b
"Configurable subsystem" is in pretty old versions of Simulink. It sounds like that in R2024b, it is definitely no longer suppor...

13 días hace | 1

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How to read out value from simout object
You need to click that signal line, right click, select properties, and then give it a name and log the signal. Once done that, ...

13 días hace | 0

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Delay - bus as initial condition and bus propagation
I am intested in this question so I made an example. According to the document, 'The initial condition x0 port accepts nonvirtu...

14 días hace | 0

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Simulation manager with initFcn
'InitFcn' is executed before the simulation starts, that is probably the reason that your parameter values set in the multiple s...

14 días hace | 0

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What is the Matlab code that connects a variable to a Slider Switch Block?
The 'binding' needs to be a block in the model. If that block uses 'A' as a parameter and that parameter is selected to be bound...

19 días hace | 1

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[Linux] Error in MatlabWindow after upgrading Ubuntu from 20.04 to 22.04
According to this, up to Ubuntu 18.04 LTS is supported by MATLAB R2018b. https://www.mathworks.com/content/dam/mathworks/mathwo...

20 días hace | 0

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Force default datatype to single in undefined Simulink blocks
'DefaultUnderspecifiedDataType' is not the same as 'Default DataType'. Your setting only applies to the Constant block because i...

21 días hace | 0

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How do I get the relative error between 2 signals in Simulink?
Assume x and y are the two signals, you are doing abs((x-y)/x) or abs((x-y)/y), when x or y is close to zero, it will cause di...

21 días hace | 1

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Tally Instances of Negative Numbers in an Array (for loop)
A=load() returns A as a structure, not a typical matrix. If you make A an matrix, this code would work if you make the following...

23 días hace | 0

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isnan to conver nan to zero in a table
T is an object of the class "table". You can't apply isnan() on it directly. Try the 'TreatAsMissing' option of the readtable() ...

23 días hace | 0

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Is there a way to extract a list from "PV Array.ModuleName.Enum" to view the solar module data more efficiently?
Should be BlockDialogParameters.ModuleName.Enum or getfield(BlockDialogParameters.ModuleName,'Enum')

23 días hace | 0

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Plot RGB triplets from a matrix as markers 'o'
Use 'color' to specify color in plot() x = linspace(0,10,10); y = linspace(0,10,10); xlabel('X-axis'); ylabel('Y-axis'); ax...

26 días hace | 0

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What is the max number of digits allowed for a base 2 number?
The default data type in MATLAB is "double", which means 64 bits. When used to represent a base 2 number, its maximum value is 2...

29 días hace | 0

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How to set Simulink block parameters using an absolute model path
The "absolute model path" of a block starts with the name of the model, not including the file folder where the model file is st...

alrededor de 1 mes hace | 0

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How to output text to Command Window if signal changes from 0 to 1 in Simulink
You might want to do that, but MATLAB and Simulink are quite different. I don't think you can do that because disp() or fprint...

alrededor de 1 mes hace | 0

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I can't download Matlab R2022a release or earlier release
I can see many versions on this link. https://www.mathworks.com/downloads/

alrededor de 1 mes hace | 0

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How to change const variable during simulink runtime
While the simulation is running, if you double click the Constant block, change its value from one numeric value to another (e.g...

alrededor de 1 mes hace | 0

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Initial condition from external source for discrete integration diuring runtime
The value of "mec_init_pos" could be constant or dynamic, but in this case, only its value at the begining of the simulation (e....

alrededor de 2 meses hace | 1

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Function Call Trigger Problem
This "Outport" block seems to output a function call trigger. The message tells you what type of block can receive this signal. ...

alrededor de 2 meses hace | 0

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A few basic Simulink/Simscape questions
run forever (tstop = inf) Yes. Set the simulation stop time to be inf store the trailing 10000 points Yes. Limit the data poi...

alrededor de 2 meses hace | 0

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How the Delay one step block and stop time ( simulation time) infuence each other on simulink?
If you don't specify the step size or it is auto, the step size is automatically adjusted, influnced by simulation stop time and...

alrededor de 2 meses hace | 0

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Simulink model output heavily dependent on relative tolerance
Not typical but is for a stiff system. Choose a stiff solver. https://www.mathworks.com/help/matlab/math/solve-stiff-odes.html

alrededor de 2 meses hace | 0

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Issue in creation of test harness of a Simulink state in stateflow or creation of harness of a subsystem present in simulink state of stateflow.
I don't think a "system under test" can be a "state" in a state chart. A typical "system under test" has inputs, while a "state"...

alrededor de 2 meses hace | 0

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Hello, can MATLAB solve equations like the one below? I mean, can MATLAB find the conditions for z that satisfy this relationship, instead of just numerical solutions?
https://www.mathworks.com/products/symbolic.html

alrededor de 2 meses hace | 0

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Generate signal according to the the rising edges of two pulse generators in simulink.
A triggered subsystem shoud suffice. https://www.mathworks.com/help/simulink/slref/triggeredsubsystem.html

alrededor de 2 meses hace | 0

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Matlab & Simulink crash at 2nd model run
After first run, execute "clear mex" or "clear functions" in MATLAB Command Window to see if it makes a difference.

3 meses hace | 0

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