theta {tfarima}

Unscramble MA polynomial

Description

Unscramble MA polynomial

Usage

theta(um)

## S3 method for class 'um'
theta(um)

Arguments

um

an object of class um.

Value

A numeric vector c(1, a1, ..., ad)

Note

This function returns the member variable um$theta.

Examples

um1 <- um(ma = "(1 - 0.8B)(1 - 0.5B)")
theta(um1)