How to mark local peak values of a signal an count them? Matlab GUI

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Ekin
Ekin 2013 年 8 月 29 日
I have a signal and after several operations in matlab gui, i get this signal:
But i want to mark it's peak values like this (and also count them):
What is the code to mark and count the peak values of this kind signal? Thanks in advance!!

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kjetil87
kjetil87 2013 年 8 月 29 日
try this one?
http://www.mathworks.se/help/signal/ref/findpeaks.html
if you end up marking to many peaks, try playing around with
'MINPEAKDISTANCE' , 'THRESHOLD' and 'MINPEAKHEIGHT'

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