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Babak


University of Sothern California

Actif depuis 2012

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How to generate code for a model with tunable parameter avoiding an algebraic loop?
How can one generate C code for the attached model? Parameter Td needs to be tunable ion the generated code. Simulink compla...

plus de 10 ans il y a | 1 réponse | 0

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Question


When will MATLAB 2014b release?
I noticed that in the past few years the "b" versions were released almost all in early September but this year it looks like it...

plus de 10 ans il y a | 5 réponses | 1

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Clean variables of worskpace from GUIDE
You can send commands to base workspace using the evalin() function as you mentioned. For example you can say: evalin('base'...

plus de 11 ans il y a | 0

| A accepté

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From cartesian to polar with points
vectors = V(2:2:end) - V(1:2:end); % vector has half the size(1) of V X = vector(:,1); Y = vector(:,2); [THETA,RHO]...

presque 12 ans il y a | 0

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saveas command saves plot with black background and no axis lables
if your platform is windows go to display settings for the screen and change to a "classic view".

presque 12 ans il y a | 0

Réponse apportée
Help with errors - Unable to meet integration tolerances, Time integration failed, Attempted to access u(5), index out of bounds because numel (u)=4
As far as for a PDE, if you want to make sure that this singularity is something related to your numerical integration method or...

presque 12 ans il y a | 0

| A accepté

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Simulink bloc to check if a condition is true during a period of time
You can use a *"Weighted Sample Time"* block to know what's the sampling time and an *"If"* block to create a condition. If y...

presque 12 ans il y a | 0

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GUI throws error: Attempt to reference field of non-structure array.
You are probably trying to use, handles.something where you have not previously defined it in the callback function or ...

presque 12 ans il y a | 0

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How to set Matlab do display all calculation results?
When the plotted data does not correspond to the whole "time span", it is usually because of that the time span is too large in ...

presque 12 ans il y a | 0

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who knows how to convert double to cell so i can get a 2D plot ?
mat2cell() cell2mat()

presque 12 ans il y a | 0

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Help with Simulink system?
In Simulink, equations are integrated in time. Your system doesn't seem to have governing (continuous or discrete) equations, in...

presque 12 ans il y a | 0

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How I can generate a continuous signal using a solver with fixed step size?
You need to let your tmax be 0.4 and solve then discard the data for 0.3<t<0.4

presque 12 ans il y a | 0

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How do I add 2 Y axis to my MATLAB Plot?
Look up plotyy() in the documentation.

presque 12 ans il y a | 0

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GUI Push button Help !
Open your GUI figure file by right clicking on its name in the MATLAB current folder window and choosing GUIDE. Find the push...

presque 12 ans il y a | 0

| A accepté

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ode45 - Does matlab keep track of derivatives which can be recalled?
Re-formulate your equations from x_dot = f(t,x,x_dot) to g(t,x,x_dot) = f(t,x,x_dot) - x_dot = 0 and then use ...

presque 12 ans il y a | 0

| A accepté

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How to resolve "Conversion to double from cell is not possible."
use cell2mat()

presque 12 ans il y a | 6

Réponse apportée
Multi Dimensional Cell Array
maxsize1 = 100; maxsize2 = 100; maxsize3 = 100; mycell = cell(maxsize1 ,maxsize2 ,maxsize3 ); mycell{1,1,1} = A1; ...

presque 12 ans il y a | 0

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how Can I Know that two Blocs were connected in the same subsystem?
Use get_param to get the parameter of the two blocks. Find out the lines connected to the two blocks with get_param . ...

presque 12 ans il y a | 0

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Calling a function f inside f,how can we do this
Just as a side issue: You better change the name of the function from a one letter name "f" to at least a 2 letter name. I remem...

presque 12 ans il y a | 0

Question


supporting cells for code generation
Do MATLAB compiler and MATLAB Builder NE support cell type variables? I'm asking because I just found out MATLAB coder does...

presque 12 ans il y a | 1 réponse | 0

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Adding up words in matrices on Matlab
b = {'Hello' 'my' 'name' 'is' 'kevin' 'Susan'}; a = strsplit('kevin, kevin my baby I am telling you Hello Hello my name is ...

presque 12 ans il y a | 0

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Movefile access is denied error
MATLAB has opened to write to file and hasn't closed them... Exit MATLAB then try moving/deleting the files.

presque 12 ans il y a | 0

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I want to know how to convert these lines of code into c
Use MATLAB coder to convert matlab code into C code.

presque 12 ans il y a | 0

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set_param Command calls OpeningFcn
If the GUI is not open, as soon as you call to open it, the OpeningFcn runs. Now its up to you what to put in the Opening Fcn. Y...

presque 12 ans il y a | 0

Réponse apportée
tic toc in a GUI
tic toc gives you the total elapsed amount of time. There is no such meaning of all the instances... you cannot save time instan...

presque 12 ans il y a | 0

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How can I get the value from an inner callback function to an outer function?
assigin('caller','a',20) creates a parameter a in the caller function and assigns 20 to it. assigin('base','a',20) do...

presque 12 ans il y a | 0

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Vectorizing inside a loop
The problem with matrix(i:n:end,4:6)=y(i,:)-matrix(i,1:3); is that the first index i:n:end is a vector and does not cor...

presque 12 ans il y a | 0

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how matlab calculate the sqrt of complex number?
usually powers of between 0 and 1 of complex numbers have multiple answers! As an example, (-3-6i)^(1/2) [THETA,RHO] = ...

presque 12 ans il y a | 0

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Is it possible to terminate ode45 once a certain condition is met during integration?
to stop the integration you need to define an "event" function. Loop up ODE45 documentation and see how you can define the event...

presque 12 ans il y a | 0

Réponse apportée
Delete double cell array entries
CellArray={[1 2 3] [1 2] [3 5 6 7] [1 2] [2 4] }; NewCellArray = [CellArray(1:3) CellArray(5)];

presque 12 ans il y a | 0

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