airline: Airline Model (SARIMA(0,1,1)x(0,1,1)s)

In tfarima: Transfer Function and ARIMA Models

Airline Model (SARIMA(0,1,1)x(0,1,1)s)

Description

Creates a seasonal ARIMA model with the structure popularized by Box and Jenkins using airline passenger data: (0,1,1)x(0,1,1)s.

Usage

airline(z, bc = FALSE, sma = c("standard", "generalized", "factorized"), ...)

Arguments

z	A ts object (must have frequency > 1).
bc	Logical. If TRUE, applies Box-Cox (log) transformation.
sma	Character. Specification for seasonal MA operator. Options are: standard, generalized or factorized. See manual for more details.
...	Additional arguments passed to um.

Details

This is a convenience function equivalent to: um(z, bc = bc, i = list(1, c(1, s)), ma = list(1, c(1, s)), ...) where s = frequency(z).

Value

A um object with airline model specification.

See Also

um

tfarima documentation built on Nov. 5, 2025, 7:43 p.m.