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% $Id: rename.vars.Rd,v 1.7 2004/04/01 20:23:15 warnes Exp $
%
% $Log: rename.vars.Rd,v $
% Revision 1.7 2004/04/01 20:23:15 warnes
% Add function remove.vars().
%
% Revision 1.6 2002/09/23 13:59:30 warnes
% - Modified all files to include CVS Id and Log tags.
%
%
\name{rename.vars}
\alias{rename.vars}
\alias{remove.vars}
\title{Remove or rename variables in a dataframe }
\description{
Remove or rename a variables in a data frame.
}
\usage{
rename.vars(data, from="", to="", info=TRUE)
remove.vars(data, names="", info=TRUE)
}
\arguments{
\item{data}{ dataframe to be modified. }
\item{from}{ character vector containing the current name of each
variable to be renamed.}
\item{to}{ character vector containing the new name of each variable
to be renamed.}
\item{names}{ character vector containing the names of variables to be
removed.}
\item{info}{ boolean value indicating whether to print details of the
removal/renaming. Defaults to TRUE.}
}
%\details{
% ~~ If necessary, more details than the __description__ above ~~
%}
\value{
The updated data frame with variables listed in \code{from} renamed to
the corresponding element of \code{to}.
}
\author{Code by Don MacQueen \email{macq\@llnl.gov}.
Documentation by Gregory R. Warnes
\email{gregory\_r\_warnes\@groton.pfizer.com} }
\seealso{ \code{\link{names}},
\code{\link{colnames}},
\code{\link{data.frame}}
}
\examples{
data <- data.frame(x=1:10,y=1:10,z=1:10)
names(data)
data <- rename.vars(data, c("x","y","z"), c("first","second","third"))
names(data)
data <- remove.vars(data, "second")
names(data)
}
\keyword{ manip }
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