How to find the mean peaks in positive axis

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Star Rats
Star Rats 2019-10-6
评论： dpb 2019-10-7
I wish to find the mean of all peaks from the positive axis in Figure 1.
I tried
pks = findpeaks(y);
but it includes some negatif value.
How to filter out the nagative peaks and remain the positive peaks?

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采纳的回答

dpb
dpb 2019-10-6
编辑：dpb 2019-10-7
thresh=0; % or whatever level you wish
pks = findpeaks(y,'MinPeakHeight',thresh);
Read the doc carefully; findpeaks has all kinds of options you'll probably find useful.
  2 个评论
dpb
dpb 2019-10-7
NB I defined the variable threshold after first just typing in the '0' value...fixed up the Answer to reflect using the variable...dpb

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更多回答（1 个）

Sulaymon Eshkabilov
Hi,
Here is a simple and fast answer to peak only positive peaks of your data:
Y = DATA; % This is your data
X = findpeaks(Y);
X_pos = X(X>0); % Selects only positive peaks
Good luck

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