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This functions returns a 2D representation of a time wave against a delayed version of itself.
phaseplot2(wave, f, channel = 1, tau = 1, type = "l",
xlab = "x(t)",
ylab = paste("x(t+", tau, ")", sep = ""), ...)Nothing is returned except an x-y plot.
an R object.
sampling frequency of wave (in Hz). Does not need to
be specified if embedded in wave.
channel of the R object, by default left channel (1).
the time delay to apply in number of samples.
type of plot that should be drawn. See plot for details (by default "l" for lines).
title of the x axis.
title of the y axis.
other plot parameters.
Jerome Sueur
The principle consists in displaying in a single x-y graph the
original time wave with a delayed version of itself. The delay is
controlled with the argument tau that needs to be specified in
number of samples. The conversion of tau in second is obtained by calculating
tau/f, with f the sampling frequency.
Kantz H, Schreiber T (2003) Non linear time series analysis. Cambridge University Press.
phaseplot
s <- synth(d=0.05, f=44100, cf=440, out="Wave")
n <- noisew(d=0.05, f=44100, out="Wave")
par(mfrow=c(2,1))
phaseplot2(s)
phaseplot2(n)
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