tfarima (version 0.3.2)

inv: Inverse of a lag polynomial

Description

inv inverts a lag polynomial until the indicated lag.

Usage

inv(lp, ...)
# S3 method for lagpol
inv(lp, lag.max = 10, ...)

Arguments

lp

an object of class lagpol.

...

additional arguments.

lag.max

largest order of the inverse lag polynomial.

Value

inv returns a numeric vector with the coefficients of the inverse lag polynomial truncated at lag.max.

Examples

# NOT RUN {
inv(as.lagpol(c(1, 1.2, -0.8))) 

# }