Clear Filters
Clear Filters

findpeaks for different thresholds

4 views (last 30 days)
AHN
AHN on 23 Jan 2019
Commented: AHN on 25 Jan 2019
Hi,
I am trying to find pks and locs for different threshold values. For one threshold value, this has worked fine. But for different threshold values (randomly generated), is there a way to store all the values of pks and locs? I would ideally like, for example, for threshold=x1, results in [pks1,locs1] format..for threshold=x2, results in [pks2,locs2] format and so on. Please let me know.
Thank you!
  2 Comments
AHN
AHN on 23 Jan 2019
Thank you very much for the reply. Yes, cell array did work. But how to store all values in a for-loop in a cell array?
for Threshold1=linspace(x1,x2,n)
[pks1,locs1] = findpeaks(data);
Results(1).Threshold1 = Threshold1;
Results(1).pks1 = pks1;
Results(1).locs1 = locs1;
end
This code just stores the last values of the iteration.

Sign in to comment.

Accepted Answer

Walter Roberson
Walter Roberson on 23 Jan 2019
Thresholds = linspace(x1,x2,n);
for thresh_idx = 1 : length(Thresholds)
Threshold1=linspace(x1,x2,n);
[pks, locs] = findpeaks(data, 'MinPeakHeight', Threshold1);
Results(thresh_idx).Threshold1 = Threshold1;
Results(thresh_idx).pks1 = pks;
Results(thresh_idx).locs1 = locs;
end
  1 Comment
AHN
AHN on 25 Jan 2019
Thank you for a head start on this, was my first time with cell arrays. The above code again stored only the last values of the iteration. However, managed to solve it with the edited code below. Thanks again.
Thresholds=linspace(x1,x2,n);
for thresh_idx = 1 : length(Thresholds);
[pks,locs] = findpeaks(data,'MinPeakHeight',Thresholds(thresh_idx));
Results{thresh_idx}={Thresholds(thresh_idx),[pks,locs]};
end

Sign in to comment.

More Answers (0)

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!