\name{TSestModel}
\alias{TSestModel}
\alias{TSestModel.TSestModel}
\alias{TSestModel.object}
\alias{is.TSestModel}

\title{Estimated Time Series Model}
\description{Object containing a time series model, data, and
estimation information.}
\usage{
    TSestModel(obj)
    \method{TSestModel}{TSestModel}(obj)
    is.TSestModel(obj)
}
\arguments{
    \item{obj}{in the first usage an object from which a TSestModel 
       object can be extracted (or constructed).}
}
\details{
The TSestModel class of objects are generated by estimation methods. See, for
example, \code{estVARXls}. They contains a time series model (TSmodel), 
data (TSdata), and information obtained by evaluating the model 
with the data in an element called \code{estimates} containing:
 
\describe{
    \item{like}{
    The negative log likelihood function value (a vector of the total, 
    constant, the det part, and the cov part)}
    \item{cov}{The estimated residual covariance.}
    \item{pred}{
    The one step ahead predictions (see predictT below). These are 
aligned with output data so that 
residuals are pred[1:sampleT,] - output[1:sampleT,]}
    \item{sampleT }{
    The end of the period (starting from 1) for which output
is used for calculating one step ahead predictions.}
    \item{predictT }{
    The end of the period for which the model is simulated.
sampleT must be less than or equal predictT. If predictT is
greater than sampleT then each step ahead beyond sampleT is
based on the prediction of the previous step and not 
corrected by the prediction error.}

The element \code{estimates} may optionally also contain and 
element \code{filter} which may have
    \item{state}{
    The one step ahead (filter) estimate of the state E[z(t)|y(t-1), u(t)].
   Note: In the case where there is no input u this corresponds to what
   would usually be called the predicted state - not the filtered state.}
    \item{track}{
    The estimated state tracking error P(t|t-1). Again note, this corresponds
to the predicted tracking eror not the filtered tracking error.
This is NULL for innovations models.}
    \item{smooth}{a list of:}
    \item{state}{
    The smoother (two sided filter) estimate of the state E[z(t)| sampleT].}
    \item{track}{
    The smoothed estimate of the state tracking error P(t|sampleT). 
    This is NULL for innovations models.}
}}

\seealso{
    \code{\link{estVARXls}},
    \code{\link{TSmodel}},
    \code{\link{TSdata}}
}
\concept{DSE}
\keyword{ts}