equation: Equation of ucarima model

In tfarima: Transfer Function and ARIMA Models

Equation of ucarima model

Description

equation prints the equation of an object of class um.

Usage

## S3 method for class 'ucarima'
equation(x, ...)

equation(x, ...)

## S3 method for class 'um'
equation(
  x,
  unscramble = FALSE,
  digits = 4,
  z = "z",
  a = "a",
  width = NULL,
  ...
)

Arguments

x	an object of class um, a list of these objects or an object of class ucarima.
...	additional arguments.
unscramble	logical. If TRUE, AR, I and MA polynomials are unscrambled.
digits	integer. Number of significant digits.
z	character. Symbol for time series.
a	character. Symbol for error.
width	integer. Maximum width for line wrapping. If NULL, uses console width.

Examples

equation(um(ar = "(1 - 0.8B)"))

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