tfarima0.3.2 package

Transfer Function and ARIMA Models

ucomp

Unobserved components

um

Univariate (ARIMA) model

varsel

Variable selection

as.lagpol

Lag polynomial

as.um

Convert arima into um.

autocorr

Theoretical simple/partial autocorrelations of an ARMA model

autocov

Theoretical autocovariances of an ARMA model

bsm

Basic Structural Time Series models

calendar

Calendar effects

CalendarVar

Calendar variables

ccf.tfm

Cross-correlation check

coef.tfm

Coefficients of a transfer function model

coef.um

Coefficients of a univariate model

diagchk

Diagnostic checking

display

Graphs for ARMA models

easter

Easter effect

fit

Estimation of the ARIMA model

fit.stsm

Estimation of a STS model

fit2autocov

Estimation of a STS model by the method of moments

ide

Identification plots

intervention

Intervention analysis/Outlier treatment

InterventionVar

Intervention variables

inv

Inverse of a lag polynomial

lagpol

Lag polynomials

logLik.um

Log-likelihood of an ARIMA model

modify

Modifying a TF or an ARIMA model

nabla

Unscramble I polynomial

noise

Noise of a transfer function model

outlierDates

Outlier dates

outliers

Outliers detection at known/unknown dates

output.tf

Output of a transfer function

pccf

Prewhitened cross correlation function

phi

Unscramble AR polynomial

pi.weights

Pi weights of an AR(I)MA model

predict.tfm

Forecasting with transfer function models

predict.um

Forecasts from an ARIMA model

printLagpol

Print numeric vector as a lagpol object

printLagpolList

Print a list of lagpol objects

psi.weights

Psi weights of an AR(I)MA model

residuals.tfm

Residuals of a transfer function model

residuals.um

Residuals of the ARIMA model

rform

Reduce form for STS model

roots.lagpol

Roots of a lag polynomial

roots

Roots of the lag polynomials of an ARIMA model

S

Annual sum

sdummies

Seasonal dummies

seasadj

Seasonal adjustment

setinputs

setinputs adds new inputs into a transfer function model.

sform

Structural form for an ARIMA model

signal

Signal component of a TF model

sim

Time series simulation form an ARIMA or TF model

sincos

Trigonometric variables

spec

Spectrum of an ARMA model

std

Standardize time series

stsm

Structural Time Series models

sum_um

Sum of univariate (ARIMA) models

summary.tfm

Summarizing Transfer Function models

summary.um

Summary of um model

tf

Transfer function for input

tfarima-package

Transfer Function and ARIMA Models.

tfest

Preestimates of a transfer function

tfm

Transfer function models

theta

Unscramble MA polynomial

tsdiag.tfm

Diagnostic Plots for Time-Series Fits Description

tsdiag.um

Diagnostic Plots for Time-Series Fits Description

tsvalue

Value of a time series at a date

Building customized transfer function and ARIMA models with multiple operators and parameter restrictions. Functions for model identification, model estimation (exact or conditional maximum likelihood), model diagnostic checking, automatic outlier detection, calendar effects, forecasting and seasonal adjustment. See Bell and Hillmer (1983) <doi:10.1080/01621459.1983.10478005>, Box, Jenkins, Reinsel and Ljung <ISBN:978-1-118-67502-1>, Box, Pierce and Newbold (1987) <doi:10.1080/01621459.1987.10478430>, Box and Tiao (1975) <doi:10.1080/01621459.1975.10480264>, Chen and Liu (1993) <doi:10.1080/01621459.1993.10594321>.