envelope | R Documentation |
Envelope Function with Hilbert Transform
envelope(x)
x |
signal vector |
Uses the hilbert transform to get the envelope function.
vector of the absolute of the hilbert transform
Jonathan M. Lees<jonathan.lees.edu>
data(CE1)
ev <- envelope(CE1$y)
plot(CE1$x, CE1$y, type='l')
lines(CE1$x,ev, col='red')
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