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\name{make.par.list}
\alias{make.par.list}
\title{Make a List from a Parameter Specification}
\description{
Process parameters so that a list of parameter
specifications is returned (used by \code{plot.zoo} and
\code{xyplot.zoo}).
}
\usage{
make.par.list(nams, x, n, m, def, recycle = sum(unnamed) > 0)
}
\arguments{
\item{nams}{character vector with names of variables.}
\item{x}{list or vector of parameter specifications, see details.}
\item{n}{numeric, number of rows.}
\item{m}{numeric, number of columns. (Only determines whether \code{m}
is 1 or greater than 1.}
\item{def}{default parameter value.}
\item{recycle}{logical. If \code{TRUE} recycle columns to provide
unspecified ones. If \code{FALSE} use \code{def} to provide unspecified
ones. This only applies to entire columns. Within columns recycling is
always done regardless of how \code{recycle} is set. Defaults to
\code{TRUE} if there is at least one unnamed variable and defaults to
\code{FALSE} if there are only named variables in \code{x}.}
}
\details{
This function is currently intended for internal use. It is currently
used by
\code{plot.zoo} and \code{xyplot.zoo} but might also be used in the future
to create additional new plotting routines.
It creates a new list which uses the named variables from \code{x}
and then assigns the unnamed in order. For the remaining variables
assign them the default value if \code{!recycle} or recycle the
unnamed variables if \code{recycle}.
}
\value{
A list of parameters, see details.
}
\examples{
make.par.list(letters[1:5], 1:5, 3, 5)
suppressWarnings( make.par.list(letters[1:5], 1:4, 3, 5, 99) )
make.par.list(letters[1:5], c(d=3), 3, 5, 99)
make.par.list(letters[1:5], list(d=1:2, 99), 3, 5)
make.par.list(letters[1:5], list(d=1:2, 99, 100), 3, 5)
}
\keyword{ts}
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