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