peak width classification by width
显示 更早的评论
In this plot peak 2,4 have different widths than other peaks . is there is a way to find peaks widths and classify them according to that ?
回答（1 个）
Image Analyst
2017-3-25
You could use for loops to start at the peak and then start traveling the signal to the right and left until the peak starts to turn around (get smaller). For example, for peak (valley) 2:
% If the peak is at index 150
% Scan to the right.
for k = 151:length(signal)
if signal(k) < signal(k-1)
% Signal is starting to fall.
rightIndex = k-1;
break;
end
end
% Scan to the left.
for k = 149: -1 : 1
if signal(k) < signal(k+1)
% Signal is starting to fall.
leftIndex = k+1;
break;
end
end
peakWidth = rightIndex - leftIndex;
1 个评论
Thanks fr answering .
1. Is this code will take exactly this peak values for example , or the values is extended until the start of next peak ?
2. is this code ( widths_smoothed) will give the same width result for the code above ?
[pks_smoothed,locs_smoothed,widths_smoothed,proms_smoothed] = findpeaks(AV,'MinPeakProminence',0.007);
类别
在 帮助中心 和 File Exchange 中查找有关 Descriptive Statistics 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
