Split array into sub arrays and apply function
4 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Priscilla
el 15 de Jul. de 2020
Comentada: Priscilla
el 15 de Jul. de 2020
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 comentario
Respuesta aceptada
madhan ravi
el 15 de Jul. de 2020
[lo, ii] = ismember(PeakS, x);
ix = diff([0, ii(lo)]);
Output = mat2cell(x, 1, ix)
2 comentarios
madhan ravi
el 15 de Jul. de 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().
Más respuestas (1)
Parth Dethaliya
el 15 de Jul. de 2020
Editada: Parth Dethaliya
el 15 de Jul. de 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!!
Ver también
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!