PeakSeek

Find peaks in vector

Description

Specify a vecter, a minimum peak separation, and a minimum peak height, and this function will find the peaks.. about 250 times faster than findpeaks would!
try:

t=linspace(0,1,10001);
x=sin(2*pi*20*t)+0.2*sin(2*pi*113*t)+.2*randn(size(t));
p=peakseek(x,10000,1);

• MATLAB release: MATLAB 7.9 (2009b)

[TideMan]

Works well locating peaks in a Fourier spectrum, providing you have smoothed it enough. My only criticism is that the routine only accepts a row vector.

[Kevin J. Delaney]

Nice work!

[Dimitris Kaliakmanis]

has same problem as findpeaks...It can't detect peaks that exist at edges of vectors. Such a vector for example is [10 9 8 7 6 5] and the only peak it has is it's first value 10,but neither peakseek nor findpeaks can't detect it