peri: Periodogram

In season: Seasonal analysis of health data

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

Author(s)

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

Examples

data(CVD)
peri(CVD$cvd)

season documentation built on May 2, 2019, 5:22 p.m.