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\name{varnames}
\alias{varnames}
\alias{varnames<-}
\alias{chanames}
\alias{chanames<-}
\title{Named dimensions of MCMC objects}
\usage{
varnames(x, allow.null=TRUE)
chanames(x, allow.null=TRUE)
varnames(x) <- value
chanames(x) <- value
}
\arguments{
\item{x}{an \code{mcmc} or \code{mcmc.list} object}
\item{allow.null}{Logical argument that determines whether the function may return NULL}
\item{value}{A character vector, or NULL}
}
\value{
A character vector , or NULL.
}
\description{
\code{varnames()} returns the variable names and \code{chanames}
returns the chain names, or NULL if these are not set.
If \code{allow.null = FALSE} then \code{NULL} values will be
replaced with canonical names.
}
\seealso{
\code{\link{mcmc}},
\code{\link{mcmc.list}}.
}
\keyword{manip}
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