https://github.com/cran/dse
Tip revision: 83dd780387085f7dae6366d8ad7562f0420a9d95 authored by Paul Gilbert on 17 November 2011, 00:00:00 UTC
version 2011.11-2
version 2011.11-2
Tip revision: 83dd780
forecastCovReductionsWRTtrue.Rd
\name{forecastCovReductionsWRTtrue}
\alias{forecastCovReductionsWRTtrue}
\title{Forecast covariance for different models}
\description{Calculate the forecast covariance for different models.}
\usage{
forecastCovReductionsWRTtrue(true.model, rng=NULL,
simulation.args=NULL,
est.replications=2, pred.replications=2,
discard.before=10, horizons=1:12,quiet=FALSE,
estimation.methods=NULL,
criteria=NULL, compiled=.DSEflags()$COMPILED)
%% Spawn=if (exists(".SPAWN")) .SPAWN else FALSE)
}
\arguments{
\item{true.model}{An object of class TSmodel or TSestModel.}
\item{discard.before}{
An integer indicating the number of points in the
beginning of forecasts to discard for calculating covariances.}
\item{est.replications}{an interger indicating the number of times
simulation and estimation are repeated.}
\item{pred.replications}{an argument passed to \code{forecastCovWRTtrue}.}
\item{simulation.args}{
A list of any arguments which should be passed to simulate
in order to simulate the true model.}
\item{horizons}{Horizons for which forecast covariance should be calculated.}
\item{rng}{If specified then it is used to set RNG.}
%% \item{Spawn}{If TRUE then Splus For loops are used.}
\item{quiet}{If TRUE then some messages are not printed.}
\item{estimation.methods}{a list as used by estimateModels.}
\item{criteria}{a ...}
\item{compiled}{a logical indicating if compiled code should be
used. (Usually true except for debugging.)}
}
\value{
A list ...
}
\details{
Calculate the forecasts cov of reduced models estimated from simulations of
true.model with an estimation method indicated by estimation.methods.
(estimation.methods is as in estimation.models BUT ONLY THE FIRST IS USED.)
discard.before is an integer indicating 1+the number of points in the
beginning of forecasts to discard for calculating forecast covariances.
criteria can be a vector of criteria as in informationTests,
(eg c("taic", "tbic") in which case the "best" model for each criteria
is accounted separately. (ie. it is added to the beginning of the list of
estimated models)
}
\concept{DSE}
\keyword{ts}