| pergram {growth} | R Documentation |
pergram calculates the values of a periodogram,
plot.pergram plots it, and plot.cum.pergram plots the
corresponding cumulative periodogram.
pergram(y)
plot.pergram(y, add=FALSE, lty=1, xlab="Frequency", ylab="Periodogram",
main="Periodogram", ylim=c(0,max(po[,2])))
plot.cum.pergram(y, xlab="Frequency", ylab="Periodogram",
main="Cumulative periodogram",
ylim=c(0,max(cpo+1.358/(a+0.12+0.11/a))))
y |
A time series vector. |
add |
If TRUE, adds a new periodogram to an existing plot. |
others |
Plotting parameters |
pergram prints and returns a two-column matrix of class,
pergram, containing the periodogram.
J.K. Lindsey
y <- rnorm(100) print(z <- pergram(y)) plot(z) plot.cum(z)