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% File src/library/graphics/man/plot.dataframe.Rd
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% Part of the R package, https://www.R-project.org
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% Copyright 1995-2014 R Core Team
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% Distributed under GPL 2 or later
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\name{plot.data.frame}
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\alias{plot.data.frame}
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\title{Plot Method for Data Frames}
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\description{
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  \code{plot.data.frame}, a method for the \code{\link{plot}} generic.
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  It is designed for a quick look at numeric data frames.
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}
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\usage{
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\method{plot}{data.frame}(x, formula = NULL, \dots)
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}
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\arguments{
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  \item{x}{object of class \code{data.frame}.}
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  \item{formula}{ optional formula, as in \code{\link{plot.formula}}. }
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  \item{\dots}{further arguments to \code{\link{plot.formula}},
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    \code{\link{stripchart}}, \code{\link{plot.default}} or
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    \code{\link{pairs}}. }
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}
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\details{
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  This is intended for data frames with \emph{numeric} columns. For more
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  than two columns it first calls \code{\link{data.matrix}} to convert
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  the data frame to a numeric matrix and then calls \code{\link{pairs}}
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  to produce a scatterplot matrix.  This can fail and may well be
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  inappropriate: for example numerical conversion of dates will lose
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  their special meaning and a warning will be given.
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  For a two-column data frame it plots the second column against the
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  first by the most appropriate method for the first column.
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  For a single numeric column it uses \code{\link{stripchart}}, and for
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  other single-column data frames tries to find a plot method for the
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  single column.
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  In case a \code{formula} is provided, the \code{\link{plot.formula}}
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  method is called, allowing a simpler invocation of the formula method
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  using the \link[base:pipeOp]{pipe operator}.
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}
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\seealso{
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  \code{\link{data.frame}}
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}
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\examples{
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plot(OrchardSprays[1], method = "jitter")
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plot(OrchardSprays[c(4,1)])
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plot(OrchardSprays)
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plot(OrchardSprays, decrease ~ treatment)
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plot(iris)
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plot(iris[5:4])
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plot(women)
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}
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\keyword{hplot}
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\keyword{methods}