Answered
Calculating the percentage in a matrix
Here is one way to do it in MATLAB A = [1 2 1;2 2 3;1 1 2]; [ua,~,uaidx] = unique(A(:)); uapercent = accumarray(uaidx...

13 years ago | 0

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Answered
Need help understanding what this filter does
It is just an auto regressive filter, in your case, your filter coefficients are b = 0.2 a = [1 -0.8] So if you writ...

13 years ago | 0

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Answered
Won't convert NaNs in cell array to zeros
You should use |isnan| to test whether a number is NaN or not.

13 years ago | 1

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Answered
How to save a filename that is part user input and part text?
save(sprintf('%sadd',a),'x','-ascii')

13 years ago | 0

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Answered
Distribute the values from fft() logarithmically - not plotting
If your frequency bins falls on frequency bins of an FFT, you can try Goertzel algorithm http://www.mathworks.com/help/signal...

13 years ago | 0

Answered
Normalized Frequency in Analog Filter Design.
Normalized frequency is for digital filters. If you want to design analog filters, they don't apply. Like you mentioned, you sh...

13 years ago | 0

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Answered
Why does LinearFMWaveform require integer Sampling Rate / PRF ratios?
Hi Michael, The pulse supposed to repeat itself at the PRF. If the ratio is not an integer, then the waveform cannot be start...

13 years ago | 0

Answered
some Matlab functions are not implemented in their m files
Those are built-in functions and the MATLAB file is only for the documentation purpose. When you call such functions, MATLAB kno...

13 years ago | 1

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How to use Floor command
This has nothing to do with |floor|, it's part of the floating point computation. See the link below http://matlab.wikia.com/...

14 years ago | 0

Answered
human voice frequency between 200h to 3200h
Let's say the passband is between 200 and 3200 Hz and the stop band is 100 and 3300 Hz, you can use a Butterworth filter Ws...

14 years ago | 0

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Answered
i want to filter a frequeny... ?
There are several issues in your code # your sample rate is 100Hz, not 1000Hz as you claimed # you specified a filter order ...

14 years ago | 1

Answered
fprintf command issue. tricky columns.
The trick is |[a;b]|, like this fprintf('Variables A : %.f | Variables B : %.f\n',[a;b]);

14 years ago | 4

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Answered
FFT of Cosine wave in Matlab
Hi Sufyan, First of all, please delete the duplicate posts so people can contribute at the same place. The power spectrum...

14 years ago | 1

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sum every 24 rows in a vector
Not sure what your end format is, but the following code adds every 24 rows and retain all the results in one column reshap...

14 years ago | 0

Answered
FFT based adaptive MVDR beamforming
Looks like you are doing subband MVDR. It should be the frequency for each corresponding band.

14 years ago | 0

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How to use Window functions?
Applying Fourier transform directly in one domain generates a first sidelobe at -13dB in the transformed domain. In a lot of app...

14 years ago | 1

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How can I change the displayed format of exponentials in an axis tick label?
Instead of using sprintf('%1.0e |',n) use sprintf('10^%d |',log10(n))

14 years ago | 0

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how can i calculate -3dB of given picture?
You could do 3dB in U and V direction separately along 2D cut.

14 years ago | 0

Answered
How can I extract column vectors from matrix (with large number of columns) ?
Here is a simple example. Not sure if it's exactly what you want, but it may get you started x = magic(3) y = mat2cell...

14 years ago | 0

Answered
How to compute the value in one point through the transferfunction?
I think the following is what you mean. s = tf('s') H = s/(s^2+2*s+10) evalfr(H,1+1i)

14 years ago | 3

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Answered
Experiences with release 2012b
The two features I like the most in the new interface 1. From Editor tab, Run and Time button. 2. The entire Publish tab, ...

14 years ago | 1

Answered
Arrange (array of 9 numbers) in ascending order. (no sort)
You can do B = unique(A) But seriously, are you trying to implement a sort algorithm in MATLAB? If so, there are many a...

14 years ago | 1

Answered
quick syntax question for saving run time
ind = sub2ind(sz,repmat((1:sz(1))',1,sz(2)),repmat(1:sz(2),sz(1),1),... matrixWhereItOccurs); accum_arr(ind(:)) =...

14 years ago | 0

Answered
calculating the integration, arrayfun problem???
First of all, like @Azzi mentioned in the comment, your |y| is unused. It's not clear what you want to do, but exp(((si...

14 years ago | 0

Answered
fzero help
The anwser is in the comments above From Matt Fig rt = 0; d = .1; cnt = 1; while rt<.1 rt = fzero(y,rt+d...

14 years ago | 0

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Answered
array: concatenate two columns of integers to one colum
a = randi([1 100],[5 4]) % a 5x4 integer matrix b = cellfun(@num2str,{a(:,2:3)},'UniformOutput',false) c = cellfun(...

14 years ago | 0

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Answered
Inability to clear object definition - nonfunctional "clear classes"
This normally means your class is still referenced somewhere. The following link may be helpful (the second half directly talks ...

14 years ago | 0

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How can i can convert A matrix to the type i want
Here is another one A.*~eye(size(A))

14 years ago | 1

Answered
How can i can convert A matrix to the type i want
A(1:size(A,1)+1:end) = 0

14 years ago | 1

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Answered
How is the Phased Array Partitioning Model supposed to be used?
Hi Michael, Since you have a phase shifter behind each element, there is really no need to go through ParitionedArray. Instea...

14 years ago | 0

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