Fangjun Jiang

Last seen: 1 jour ago | Active since 2011

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

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Answered
Invalid use of operator
There is a difference between operator "*" and ".*". But there is no such an operator as ".-" in MATLAB.

environ 19 heures ago | 0

Answered
Simulink Switch Outputs wrong data format
check the size/dimension of the Constant zero block, the "TriggerOUT" Outport block and the Switch block itself. Specify it as [...

1 jour ago | 1

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Answered
Error using arrayfun All of the input arguments must be of the same size and shape
no need to use arrayfun() for this. cellstr(dec2bin(sbox,4))

1 jour ago | 0

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How can I create a set of N diagnal matrices range from diag(1, 1, ... , 1) to diag(-1, -1, ... , -1) for testing purposes?
a=(dec2bin(15:-1:0)-48)*2-1; z=zeros(4,4,16); for k=1:16 z(:,:,k)=diag(a(k,:)); end

5 jours ago | 1

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Creating a pulse for thermal noise
clc,clear Hz = 10; Amp = 10; x = -10:0.01:10; % a pulse function f = @(xi,a,b) a*rectpuls(xi,b)-174; % plot to plot(x,f...

5 jours ago | 0

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Answered
How to convert 32x32x2x20000 into 20000x1 cell array?
mat2cell() ?

22 jours ago | 0

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Multiple plots not working on the simulink spring mass model
This one again? https://www.mathworks.com/matlabcentral/answers/646918-my-simulink-model-seems-to-not-receiving-proper-variable...

23 jours ago | 0

Answered
Insert degree symbol in axis title.
title('9^oE') text(0.5,0.5,'9^oE') xticklabels({'0^oE','1^oE'}) doc title search for "superscript"

24 jours ago | 0

Answered
Data type work vector name must less than 31 characters long
Assume you are using base workspace as data source, could run this in Command Window and inspect the "data type" property value?...

environ un mois ago | 0

Answered
Creating a vector from a set of coordinates
You mean like this? There is really no need to do this. Please explain the need. x = [10.1, 5.4, 7.3]; y = [2.3, 7.4, 8.8]; i...

environ un mois ago | 0

Answered
Replace loop with more efficient procedure to make it faster
Would this give you a clue? t1=1:3; t2=(1:4)'; flag=(t1==t2)

environ un mois ago | 1

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Answered
Can I save all the command history of a running script?
diary()?

environ un mois ago | 0

Answered
MATLAB path linked to last user account for designated computer license installed on Windows 10 device
There is no problem with the installation. No one should modify the build-in pathdef.m. Instead, everyone should use a short-c...

environ un mois ago | 0

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Answered
How can I use or call .exe file in my normal matlab script ?
doc system

environ un mois ago | 0

Answered
Unable to do Modeling simulink for MAB and JMAAB
Model Advisor, by products, Simulink, modeling standards, MAB It requires Simulink Check toolbox

environ 2 mois ago | 1

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Answered
How to make the value in Data Store Memory global
The example is here. https://www.mathworks.com/help/simulink/ug/using-global-data-with-the-matlab-function-block.html Most like...

environ 2 mois ago | 1

Answered
Modify the storage class in the data dictionary programmatically
https://www.mathworks.com/help/simulink/ug/store-data-in-dictionary-programmatically.html

environ 2 mois ago | 0

Answered
How to programmaticaly set storage class (2020a) in Data Store Memory ?
if "DSM_Block" is a block handle, you can use get/set if "DSM_Block" is a block path, use set_param/get_param

environ 2 mois ago | 0

Answered
Error:Brace indexing is not supported for variables of this type.
Run "dbstop if error" in MATLAB Command Window first and then run your optimization. Hopefully you will be able to see the line ...

environ 2 mois ago | 0

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Answered
provide Input port data during simulation
https://www.mathworks.com/help/simulink/ug/signal-loading-techniques.html#bu110x_-1

environ 2 mois ago | 0

Answered
How to vary Gain in Simulink dependent on input's amplitude and phase during runtime ?
Use the Product block. The Gain block is an operation of multiplication, right?

environ 2 mois ago | 0

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How to delete a node from DOM object?
use delete() and then write the xDoc to an XML file.

environ 2 mois ago | 0

Answered
How to access Simulink Model callbacks like PreLoadFcn, InitFcn, StopFcn from matlab command window?
Model='f14'; open_system(Model) get_param(Model,'PreLoadFcn'); set_param(Model,'PreLoadFcn','YourFunctionName')

environ 2 mois ago | 0

Answered
Neglecting difference between two values if it is very small so that value1= value2
To compare element by element, abs(C) < Tolerance To compare the two vectors as a whole, all(abs(C) < Tolerance) or use isme...

environ 2 mois ago | 0

Answered
How to loop through structure with words?
fn=fieldnames(reflectance.nhy1); for k=1:length(fn) reflectance.nhy1.(fn{k}) end

environ 2 mois ago | 0

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Answered
write two inputs to interpreted MATLAB block
Specify as "mod1(u(1),u(2))". Look at the Help of the block.

2 mois ago | 0

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Answered
Why is the look-up table in Simulink must faster than the interp3 function in Matlab script?
Might it be that interp3() is a M-script function, not a built-in (or written in C) function? Try to specify all the optional ...

2 mois ago | 0

Answered
What does the Following mean in Simulink
That is the Index Vector block. "Ldq" is a vector. The above math is: Out1=In1*Ldq(2)/Ldq(1)

2 mois ago | 1

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Answered
Repeat a time based signal in Simulink (not using *.m script) / during Start of simulation based on number of repetitions
Repeating Sequence block

2 mois ago | 0

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Answered
How can i have a loop in every step time in Simulink?
Use For Iterator Subsystem

2 mois ago | 0

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