Learn R Programming

tfarima (version 0.1.1)

tfest: Preestimates of a transfer function

Description

tfest provides preestimates of the transfer function between an output and an input.

Usage

tfest(y, x, delay = 0, p = 1, q = 2, um.y = NULL, um.x = NULL, n.back = NULL)

Arguments

y

output, a ts object or a numeric vector.

x

input, a ts object or a numeric vector.

delay

integer.

p

order of the AR polynomial, double.

q

order of the MA polynomial, double.

um.y

univariate model for output, um object or NULL.

um.x

univariate model for input, um object or NUL.

n.back

number of backcasts.

Value

A "tf" S3 object