Answered
How can I get a PDF version of Simulink manual?
You need a login, but here: <http://www.mathworks.com/help/pdf_doc/allpdf.html>

14 years ago | 1

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Answered
fft scalloping or window effect
Lisa, you are correcting above for the window, which is what I said initially. You're not working with power in the above exampl...

14 years ago | 0

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Answered
help with dwt
Hi Alma, Yes you can. It is not clear from your question whether you want to select 64x64 blocks from the first level details, o...

14 years ago | 0

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Answered
Vectors and Scalars in function calls
That's correct Craig, you save that imagesource.m file somewhere on the MATLAB search path then define your L vector in the work...

14 years ago | 0

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Vectors and Scalars in function calls
You can do definitely do that. It would help a lot if you posted the code (using formatting) and the errors you are getting.

14 years ago | 0

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Toolboxes displayed
Start > Toolboxes

14 years ago | 0

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Answered
fft scalloping or window effect
The L2 norm is the energy of the window, not the length. You can use Hft.Data that has the doubles that you need. Hft.Freq...

14 years ago | 0

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fft scalloping or window effect
Lisa, you have to compensate for the L2 norm of the window, regardless of which window you use. Keep in mind that you are multip...

14 years ago | 0

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fft scalloping or window effect
Hi Lisa, If you use the msspectrum method for spectrum.periodogram with the flat top window, you see that it does an awfully goo...

14 years ago | 0

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Symbolic matlab: how to set a variable as a function of time?
Hi Sebastian, do you know the expression for theta(t)? syms theta t; theta(t) = t^2; diff(cos(theta),t)

14 years ago | 0

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Is posible to use "DCT" on general matrix data?
You can use dct2() from the Image Processing Toolbox on a matrix. X = randn(16,16); Y = dct2(X); You do not tell us w...

14 years ago | 0

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Undefined function or method
Uptal, You can also try the following: restoredefaultpath; matlabrc then see if that corrects your problem.

14 years ago | 0

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How to acquire and process real time signals in MATLAB ?
Are these video or audio signals? You can actually stream video and audio data into MATLAB using System objects. System objects...

14 years ago | 0

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Undefined function or method
It sounds like the Bioinformatics Toolbox is not installed on your machine, or not properly installed. If you enter >>v...

14 years ago | 0

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How to append data or values to an existing .csv file??
Use dlmwrite with 'delimiter', ',' and '-append' M = randn(4,4); dlmwrite('test.csv',M,'delimiter',','); N = randn(4,...

14 years ago | 5

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Answered
Error in using find
Did you by any chance assign a variable as min? Because min is a MATLAB function, if you also create a variable, min, (never a g...

14 years ago | 0

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How to distribute 100 ones in 100 by 100 matrix randomly in all posibilities
indices = randi(1e4,100,1); x = zeros(100,100); x(indices) = 1;

14 years ago | 1

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Difference pitch frequencies
low pitch and high pitch are relative terms so you have to define them in the context of your application. You can use the discr...

14 years ago | 0

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how to plot x axis equal spaced ?
Since this sounds very much like a homework problem, I don't want to simply show the code, but look at your x-vector x = [0...

14 years ago | 0

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Measure the coherence (or incoherence) of two/one matrix/ces
For a single matrix, X, compute X'*X and then find the largest absolute value not on the main diagonal. X = randn(4...

14 years ago | 1

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Extracting phase informations from a FFT
If you know the frequencies, you can formulate this problem as linear regression problem and obtain the least squares estimates....

14 years ago | 1

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Answered
Extracting phase informations from a FFT
Hi, You can get the phase from the DFT of a signal (using fft()), but not from the power spectrum. So if you have the output of ...

14 years ago | 1

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hrv spectral analysis
Hi Olga, you have your frequencies in your freq vector. You can use that information to subset your psdest vector. Keep in mi...

14 years ago | 0

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How does the MATLAB calculate the arctan?
Why do you think it simplifies like that? for t=0 and theta_0= 0, your expression evaluates to (c_0/c_1)- (2/c_1)*atan(t...

14 years ago | 1

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Low order narrow FIR band pass filter
Hi do you have the Signal Processing Toolbox? First I would question whether you really need a bandpass here when you want your...

14 years ago | 0

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suppressing the display of ans
Put a semicolon at the end of the line. x = randn(8,1); fft(x);

14 years ago | 7

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help with matlab code
Then from the line I gave you: [H,V,D] = detcoef2('all',C,S,2); std(reshape(V,size(V,1)*size(V,2),1)) std(resha...

14 years ago | 0

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Answered
help with matlab code
Hi Alma, You don't want std(c) because that gives you the standard deviation of all the wavelet and approximation coefficients. ...

14 years ago | 0

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how to calculate settling time and degree of occilation.
Hi Krishnendu, By any chance do you have access to the R2012a prerelease version of Matlab? If you do, the R2012a prerelease ...

14 years ago | 0

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FIR filter with LMS algorithm
Do you have the DSP System Toolbox? If so, see adaptfilt.lms

14 years ago | 0

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