phonTools (version 0.2-2.2)

peakfind: Find the Peaks

Description

Locate the peaks in a numeric vector.

Usage

peakfind (x, show = TRUE)

Value

A vector indicating the location (position in the vector) of peaks in the vector.

Arguments

x

A vector whose peaks are to be located.

show

If TRUE, the vector is plotted and peaks are indicated with red triangles.

Author

Santiago Barreda <[e-mail]>

Details

This function looks for peaks by finding elements whose value is greater than both the elements that surround it. If no peaks are found, a value of zero is returned.

Examples

#data (sound)
#sound2 = sound$sound[10000:11000] 
#spectrum = spectralslice (sound2, padding = 0, output = TRUE, show = TRUE)
#peakfind (spectrum[,2])