Split array into sub arrays and apply function
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Hi everyone,
I am using findpeaks to detect peaks in my data and would like to create a sub arrays everytime a peak is detected and then apply a function to the sub arrays for example
If
x = [0.2954 0.0861 -0.0204 0.0046 0.2297 0.7651 -0.4482 -1.2974 0.3673 -0.7759 0.5676 1.0851 0.4082 0.3364 -0.3396 -0.1935 0.5228]
Peaks = [0.7651 0.5676 0.5228]
expected output / sub arrays = [{0.2954 0.0861 -0.0204 0.0046 0.2297 0.7651} {-0.4482 -1.2974 0.3673 -0.7759 0.5676} {1.0851 0.4082 0.3364 -0.3396 -0.1935 0.5228}
Thanks in advance
Regards,
Abigail
1 Commento
Risposta accettata
madhan ravi
il 15 Lug 2020
[lo, ii] = ismember(PeakS, x);
ix = diff([0, ii(lo)]);
Output = mat2cell(x, 1, ix)
2 Commenti
madhan ravi
il 15 Lug 2020
As Stephen comments if you use the second output of findpeaks() you replace ii(lo) in my code with the second output of findpeaks().
Più risposte (1)
Parth Dethaliya
il 15 Lug 2020
Modificato: Parth Dethaliya
il 15 Lug 2020
x = [0.2954 0.0861 -0.0204 0.0046 0.2297 ...
0.7651 -0.4482 -1.2974 0.3673 -0.7759 ...
0.5676 1.0851 0.4082 0.3364 -0.3396 -0.1935 0.5228];
Peaks = [0.7651 0.5676 0.5228];
SubArray=cell(1,size(Peaks,2));
Init=1;
for i=1:size(Peaks,2)
SubArray{i} = x(Init:find(x==Peaks(i)));
Init = find(x==Peaks(i))+1;
end
Seems the code is self-explanatory, still comment if you have any queries.
Hope it helps!!
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