cycles: Generate harmonic model
In astrochron: A Computational Tool for Astrochronology

cycles

R Documentation

Generate harmonic model

Description

Make a time series with specified harmonic components and noise

Usage

cycles(freqs=NULL,phase=NULL,amp=NULL,start=0,end=499,dt=1,noisevar=0,genplot=T,
        verbose=T)

Arguments

`freqs`	Vector with frequencies to model ('linear' frequencies).
`phase`	Vector with phases for each frequency (phase in radians). Phases are subtracted.
`amp`	Vector with amplitudes for each frequency.
`start`	First time/depth/height for output.
`end`	Last time/depth/height for output.
`dt`	Sampling interval.
`noisevar`	Variance of additive Gaussian noise.
`genplot`	Generate summary plots? (T or F)
`verbose`	Verbose output? (T or F)

Value

modeled time series.

Examples

## test signal on pg 38 of Choudhury, Shah, and Thornhill (2008)
freqs=c(0.12,0.18,0.30,0.42)
phase=c(-pi/3,-pi/12,-pi/4,-3*pi/8)
amp=c(1,1,1,1)

cycles(freqs,phase,amp,start=0,end=4095,dt=1,noisevar=0.2)

astrochron documentation built on Sept. 30, 2024, 9:14 a.m.