forecast: seasonal – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

seasonal

Extract components from a time series decomposition

Description

Returns a univariate time series equal to either a seasonal component, trend-cycle component or remainder component from a time series decomposition.

Usage

seasonal(object)

trendcycle(object)

remainder(object)

Arguments

object

Object created by decompose, stl or tbats.

Value

Univariate time series.

Author(s)

Rob J Hyndman

Examples

plot(USAccDeaths)
fit <- stl(USAccDeaths, s.window="periodic")
lines(trendcycle(fit),col="red")

library(ggplot2)
autoplot(cbind(
	    Data=USAccDeaths,
	    Seasonal=seasonal(fit),
  	  Trend=trendcycle(fit),
	    Remainder=remainder(fit)),
    facets=TRUE) +
  ylab("") + xlab("Year")

forecast

Forecasting Functions for Time Series and Linear Models

v8.14

GPL-3

Authors

Rob Hyndman [aut, cre, cph] (<https://orcid.org/0000-0002-2140-5352>), George Athanasopoulos [aut], Christoph Bergmeir [aut] (<https://orcid.org/0000-0002-3665-9021>), Gabriel Caceres [aut], Leanne Chhay [aut], Mitchell O'Hara-Wild [aut] (<https://orcid.org/0000-0001-6729-7695>), Fotios Petropoulos [aut] (<https://orcid.org/0000-0003-3039-4955>), Slava Razbash [aut], Earo Wang [aut], Farah Yasmeen [aut] (<https://orcid.org/0000-0002-1479-5401>), R Core Team [ctb, cph], Ross Ihaka [ctb, cph], Daniel Reid [ctb], David Shaub [ctb], Yuan Tang [ctb] (<https://orcid.org/0000-0001-5243-233X>), Zhenyu Zhou [ctb]

Initial release