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\name{as}
\alias{as}
\alias{as.timeSeries}
\alias{as.timeSeries.default}
\alias{as.timeSeries.data.frame}
\alias{as.timeSeries.character}
\alias{as.timeSeries.ts}
\alias{as.timeSeries.zoo}
\alias{as.matrix,timeSeries-method}
\alias{as.data.frame,timeSeries-method}
\alias{as.list,timeSeries-method}
%\alias{as.ts,timeSeries-method}
% S3 versions of the above
\alias{as.matrix.timeSeries}
\alias{as.data.frame.timeSeries}
\alias{as.list.timeSeries}
\alias{as.ts}
\alias{as.ts.timeSeries}
% for as(x, "class") where x is the 1st element of the signature
\alias{coerce,ANY,timeSeries-method}
\alias{coerce,data.frame,timeSeries-method}
\alias{coerce,character,timeSeries-method}
\alias{coerce,ts,timeSeries-method}
% for as(x, "class") where x is timeSeries
\alias{coerce,timeSeries,matrix-method}
\alias{coerce,timeSeries,data.frame-method}
\alias{coerce,timeSeries,list-method}
\alias{coerce,timeSeries,ts-method}
\alias{coerce,timeSeries,tse-method}
\title{Convert objects to/from class 'timeSeries'}
\description{
Functions and methods dealing with the coercion between \code{"timeSeries"}
and other classes.
}
\usage{
## convert to 'timeSeries'
as.timeSeries(x, \dots)
## convert from 'timeSeries' to other classes
\method{as.ts}{timeSeries}(x, \dots)
\S4method{as.matrix}{timeSeries}(x, \dots)
\S4method{as.data.frame}{timeSeries}(x, row.names = NULL, optional = FALSE, \dots)
\S4method{as.list}{timeSeries}(x, \dots)
}
\arguments{
\item{x}{
the object to be converted, see Section \sQuote{Details} for the
special case when \code{class(x)} is \code{"character"}.
}
\item{row.names}{
\code{NULL} or a character vector giving the row names for the
data frame. Missing values are not allowed.
}
\item{optional}{
a logical value. If \code{TRUE}, setting row names and converting
column names (to syntactic names) is optional.
}
\item{\dots}{
arguments passed to other methods.
}
}
\details{
Functions to create \code{"timeSeries"} objects from other objects and
to convert \code{"timeSeries"} objects to other classes.
\code{as.timeSeries} is a generic function to convert an object to
\code{"timeSeries"}. There are specialised methods for the following
classes: \code{"ts"}, \code{"data.frame"}, \code{"character"}, and
\code{"zoo"}. The default method is equivalent to calling
\code{"timeSeries()"}, so \code{x} can be of any type that
\code{"timeSeries()"} accepts.
The \code{character} method of \code{as.timeSeries} is special, in
that its contents are parsed and evaluated, then \code{as.timeSeries}
is called on the returned value (passing also the \code{"..."}
arguments. Care is needed to avoid infinite recursion here since
currently the code doesn't guard against it.
}
\value{
for \code{as.timeSeries}, an object of class \code{"timeSeries"}. \cr
for \code{as.numeric}, \code{as.data.frame}, \code{as.matrix},
\code{as.ts}, \code{as.list} - a numeric vector, a data frame, a
matrix, an object of class \code{ts}, or a \code{"list"},
respectively.
}
\seealso{
\code{\link{timeSeries}},
class \code{\linkS4class{timeSeries}}
}
\examples{
## Create an Artificial 'timeSeries' Object
setRmetricsOptions(myFinCenter = "GMT")
charvec <- timeCalendar()
data <- matrix(rnorm(12))
TS <- timeSeries(data, charvec, units = "RAND")
TS
## Coerce to Vector
as.vector(TS)
## Coerce to Matrix
as.matrix(TS)
## Coerce to Data Frame
as.data.frame(TS)
}
\keyword{chron}
\keyword{ts}
|
