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How to find Peaks and Troughs in a series of data

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Borhan
Borhan 2013-11-11
评论： Image Analyst 2013-11-12
Hey guys, I have to prepare a code to find the peaks and Troughs of a series of data. The data, itself, has small noise which results in local maximums in trough areas......and vice versa.....What I have to do in the first step is to develop 2 vectors in which Peaks and Troughs are put respectively. meanwhile, I have to eliminate these noise. I would appreciate if any guy help me in this respect. Thanks in advance, Sincerely,

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回答（1 个）

Image Analyst
Image Analyst 2013-11-11
If you have the Image Processing Toolbox, use imregionmin() and imregionalmax(). If you have the Signal Processing Toolbox, use findpeaks().
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Borhan
Borhan 2013-11-11
Thank you for your answer, but I have to write a code for this and I have no idea about it. Thanks again
Image Analyst
Image Analyst 2013-11-12
Did you look at the examples in the help for those functions and start out by trying them? Is your signal 1D or 2D?

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