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\name{plot.default}
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\name{plot.default}
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\title{The Default Scatterplot Function}
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\title{The Default Scatterplot Function}
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\usage{
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\usage{
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plot.default(x, y, type="p", col=par("fg"), pch=par("pch"),
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plot.default(x, y, type = "p", col = par("fg"), bg = NA,
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xlim=NULL, ylim=NULL, log="", axes=TRUE,
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pch = par("pch"), xlim = NULL, ylim = NULL, log = "",
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frame.plot=TRUE, before=NULL, after=NULL,
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axes = TRUE, frame.plot = TRUE, panel.first = NULL,
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panel.last = NULL, ann = par("ann"), main = NULL,
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ann=par("ann"), main=NULL, xlab=NULL, ylab=NULL, \dots)
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xlab = NULL, ylab = NULL, cex = par("cex"),
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lty = par("lty"), lwd = par("lwd"), \dots)
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}
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}
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\alias{plot.default}
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\alias{plot.default}
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\arguments{
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\arguments{
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\item{x,y}{the \code{x} and \code{y} arguments provide the
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\item{x,y}{the \code{x} and \code{y} arguments provide the x and y
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x and y coordinates for the plot. Any reasonble way of defining
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coordinates for the plot. Any reasonble way of defining the
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the coordinates is acceptable.
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coordinates is acceptable. See the function \code{\link{xy.coords}}
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See the function \code{xy.coords} for details.}
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for details.}
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\item{type}{the type of plot desired. The following possibilities
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\item{type}{the type of plot desired. The following possibilities are
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are possible; \code{"p"} for points, \code{"l"} for lines,
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possible; \code{"p"} for points, \code{"l"} for lines, \code{"o"}
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\code{"o"} for overplotted points and lines,
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for overplotted points and lines, \code{"b"} or \code{c} for points
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\code{"b"} or \code{c} for points joined by lines,
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\code{s} and \code{S} for step functions and
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joined by lines, \code{"s"} and \code{"S"} for step functions and
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\code{"h"} for \emph{high density} vertical lines.}
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\code{"h"} for \emph{high density} vertical lines.}
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\item{col}{The colors for lines and points.
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\item{col}{The colors for lines and points. Multiple colors can be
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Multiple colors can be specified so that each point can
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specified so that each point can be given its own color. If there
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be given its own color. If there are fewer colors
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are fewer colors than points they are recycled in the standard
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than points they are recycled in the standard fashion.}
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fashion.}
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\item{bg}{???}
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\item{pch}{a vector of plotting characters or symbols.}
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\item{pch}{a vector of plotting characters or symbols.}
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\item{xlim}{the x limits of the plot.}
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\item{xlim}{the x limits of the plot.}
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\item{ylim}{the y limits of the plot.}
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\item{ylim}{the y limits of the plot.}
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\item{log}{a character string which contains \code{"x"}
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\item{log}{a character string which contains \code{"x"} if the x axis
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if the x axis is to be logarithmic, \code{"y"} if the
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is to be logarithmic, \code{"y"} if the y axis is to be logarithmic
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y axis is to be logarithmic and \code{"xy"} or \code{"yx"}
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if both axes are to be logarithmic.}
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and \code{"xy"} or \code{"yx"} if both axes are to be logarithmic.}
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\item{axes}{a logical value indicating whether axes should
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\item{axes}{a logical value indicating whether axes should be drawn on
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be drawn on the plot.}
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the plot.}
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\item{frame.plot}{a logical indicating whether a box
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\item{frame.plot}{a logical indicating whether a box should be drawn
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should be drawn around the plot.}
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around the plot.}
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\item{before}{an expression to be evaluated after the
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\item{panel.first}{an expression to be evaluated after the plot axes
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plot axes are set up but before any plotting takes place.
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are set up but before any plotting takes place. This can be useful
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This can be useful for drawing background grids or
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for drawing background grids or scatterplot smooths.}
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scatterplot smooths.}
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\item{after}{an expression to be evaluated after plotting has taken place.}
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\item{panel.last}{an expression to be evaluated after plotting has
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taken place.}
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\item{ann}{an logical value indicating whether the default annotation
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\item{ann}{an logical value indicating whether the default annotation
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(title and x and y axis labels) should appear on the plot (default \code{TRUE}).}
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(title and x and y axis labels) should appear on the plot/}
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\item{main}{a main title for the plot.}
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\item{main}{a main title for the plot.}
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\item{xlab}{a label for the x axis.}
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\item{xlab}{a label for the x axis.}
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\item{ylab}{a label for the y axis.}
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\item{ylab}{a label for the y axis.}
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\item{cex}{a numerical value giving the amount by which plotting text
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and symbols should be scaled relative to the default}
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\item{lty}{the line type}
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\item{lwd}{the line width (is this used at all ???)}
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\item{\dots}{graphical parameters may also be passed as arguments.}
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\item{\dots}{graphical parameters may also be passed as arguments.}
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}
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}
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\value{
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\value{
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This function is invoked for its side effect of drawing
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This function is invoked for its side effect of drawing a scatter plot
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a scatter plot in the active graphics window.
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in the active graphics window.
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}
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}
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\references{
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\references{
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Cleveland, W. S. (1985).
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Cleveland, W. S. (1985). The Elements of Graphing
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\emph{The Elements of Graphing Data}.
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Data, Monterey, CA: Wadsworth.
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Monterey, CA: Wadsworth.
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}
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}
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\seealso{
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\seealso{
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\code{\link{plot}}, \code{\link{xy.coords}}.
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\code{\link{plot}}, \code{\link{xy.coords}}.
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}
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}
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\examples{
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\examples{
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data(cars)
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data(cars)
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Speed <- cars$speed
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Speed <- cars$speed
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Distance <- cars$dist
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Distance <- cars$dist
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plot(Speed, Distance, before=grid(8,8),
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plot(Speed, Distance, panel.first = grid(8,8),
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pch=0, cex=1.2, col="blue")
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pch = 0, cex = 1.2, col = "blue")
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plot(Speed, Distance,
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plot(Speed, Distance,
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before=lines(lowess(Speed, Distance), lty="dashed"),
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panel.first = lines(lowess(Speed, Distance), lty = "dashed"),
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pch=0, cex=1.2, col="blue")
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pch = 0, cex = 1.2, col = "blue")
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}
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}
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