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\name{scale_shape_discrete}
\alias{scale_shape_discrete}
\alias{ScaleShapeDiscrete}
\alias{scale_shape}
\title{scale\_shape\_discrete}
\description{Scale for shapes, aka glyphs}
\details{
This page describes scale\_shape\_discrete, see \code{\link{layer}} and \code{\link{qplot}} for how to create a complete plot from individual components.
}
\usage{scale_shape_discrete(name = NULL, solid = TRUE, limits = NULL,
breaks = NULL, labels = NULL, formatter = identity, legend = TRUE,
...)}
\arguments{
\item{name}{name of scale to appear in legend or on axis. Maybe be an expression: see ?plotmath}
\item{solid}{NULL}
\item{limits}{numeric vector of length 2, giving the extent of the scale}
\item{breaks}{numeric vector indicating where breaks should lie}
\item{labels}{character vector giving labels associated with breaks}
\item{formatter}{NULL}
\item{legend}{NULL}
\item{...}{ignored }
}
\seealso{\itemize{
\item \url{http://had.co.nz/ggplot2/scale_shape_discrete.html}
}}
\value{A \code{\link{layer}}}
\examples{\dontrun{
dsmall <- diamonds[sample(nrow(diamonds), 100), ]
(d <- qplot(carat, price, data=dsmall, shape=cut))
d + scale_shape(solid = TRUE) # the default
d + scale_shape(solid = FALSE)
d + scale_shape(name="Cut of diamond")
d + scale_shape(name="Cut of\ndiamond")
# To change order of levels, change order of
# underlying factor
levels(dsmall$cut) <- c("Fair", "Good", "Very Good", "Premium", "Ideal")
# Need to recreate plot to pick up new data
qplot(price, carat, data=dsmall, shape=cut)
# Or for short:
d %+% dsmall
}}
\author{Hadley Wickham, \url{http://had.co.nz/}}
\keyword{hplot}
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