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How to label your peaks in descending order?

19 vues (au cours des 30 derniers jours)
John Mark Enhaynes
John Mark Enhaynes le 30 Mar 2021
Modifié(e) : LO le 30 Mar 2021
I search the whole community and website on how to label my peaks from 1-5 from the highest value given
Here is my code I've made so far:
fid=fopen('Programming 2 Data.txt');
e=textscan(fid,'%f %f','headerlines',1);
x = f(:,1);
y = f(:,2);
axis tight
I have search the terminology on findpeaks, but it doesn't really help me that much to get the desired result that I wanted.
  3 commentaires
John Mark Enhaynes
John Mark Enhaynes le 30 Mar 2021
I've tried that, but I've got similar errors from other users I've seen in the forum
Mathieu NOE
Mathieu NOE le 30 Mar 2021
I ve plenty of other similar functions (attached)
try with peakseek and do the sorting by yourself afterwards

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LO le 30 Mar 2021
Modifié(e) : LO le 30 Mar 2021
something like this ?
my guess is that you won't need the sortedX because you are looking for peaks on your Y axis, right ? But try adapting this to your code. Eventually the "locs" variable will have to be modified taking into account your X vector.
[peaks,locs,widths] = findpeaks(sortedY,'MinPeakHeight',290,'Annotate','Extents');
[vals,order] = sortrows(peaks,'descend'); % sort them based on peak value, for instance, but you can sort them based on widths as well (just replace peaks with widths in sortrows)

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