peri {season}R Documentation

Periodogram

Description

Estimated periodogram using the fast Fourier transform (fft).

Usage

peri(data,adjmean=TRUE,plot=TRUE)

Arguments

data a data frame.
adjmean subtract the mean from the series before calculating the periodogram (default=TRUE).
plot plot the estimated periodogram (default=TRUE).

Value

peri periodogram, I(omega).
f frequencies in radians, omega.
c frequencies in cycles of time, 2π/omega.
amp amplitude periodogram.
phase phase periodogram.

Author(s)

Adrian Barnett a.barnett<at>qut.edu.au

Examples

data(CVD)
peri(CVD$cvd)

[Package season version 0.2-3 Index]