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\name{expand_limits}
\alias{expand_limits}
\title{Expand the plot limits with data.}
\author{Hadley Wickham <h.wickham@gmail.com>}
\description{
Some times you may want to ensure limits include a single value, for all panels or all plots. This function is a thin wrapper around \code{\link{geom_blank}} that makes it easy to add such values.
}
\usage{expand_limits(...)}
\arguments{
\item{...}{named list of aesthetics specifying the value (or values that should be included.}
}
\examples{p <- qplot(mpg, wt, data = mtcars)
p + expand_limits(x = 0)
p + expand_limits(y = c(1, 9))
p + expand_limits(x = 0, y = 0)
qplot(mpg, wt, data = mtcars, colour = cyl) +
expand_limits(colour = seq(2, 10, by = 2))
qplot(mpg, wt, data = mtcars, colour = factor(cyl)) +
expand_limits(colour = factor(seq(2, 10, by = 2)))}
\keyword{hplot}
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