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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...

14年弱前 | 0

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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...

14年弱前 | 0

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

14年弱前 | 1

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

14年弱前 | 0

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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...

14年弱前 | 0

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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...

14年弱前 | 0

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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...

14年弱前 | 0

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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...

14年弱前 | 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年弱前 | 0

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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年弱前 | 0

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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年弱前 | 1

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

14年弱前 | 4

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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年弱前 | 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年弱前 | 0

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

14年弱前 | 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年弱前 | 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年弱前 | 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年弱前 | 0

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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年弱前 | 0

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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年弱前 | 3

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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年弱前 | 1

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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年弱前 | 1

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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年弱前 | 0

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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年弱前 | 0

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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年弱前 | 0

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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年弱前 | 0

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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年弱前 | 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年弱前 | 1

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

14年弱前 | 1

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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年弱前 | 0

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