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}
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}
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\usage{
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\usage{
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xyTable(x, y = NULL, digits)
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xyTable(x, y = NULL, digits)
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}
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}
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\arguments{
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\arguments{
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  \item{x,y}{numeric vectors of the same length; alternatively other
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  \item{x, y}{numeric vectors of the same length; alternatively other
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    (x,y) argument combinations as allowed by \code{\link{xy.coords}(x,y)}.}
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    (x, y) argument combinations as allowed by
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    \code{\link{xy.coords}(x, y)}.}
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  \item{digits}{integer specifying the significant digits to be used for
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  \item{digits}{integer specifying the significant digits to be used for
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    determining equality of coordinates.  These are compared after
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    determining equality of coordinates.  These are compared after
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    rounding them via \code{\link{signif}(*,digits)}.}
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    rounding them via \code{\link{signif}(*, digits)}.}
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}
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}
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\value{
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\value{
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  A list with three components of same length,
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  A list with three components of same length,
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  \item{x}{x coordinates, rounded and sorted.}
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  \item{x}{x coordinates, rounded and sorted.}
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  \item{y}{y coordinates, rounded (and sorted within \code{x}).}
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  \item{y}{y coordinates, rounded (and sorted within \code{x}).}
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  \item{number}{multiplicities (positive integers); i.e.,
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  \item{number}{multiplicities (positive integers); i.e.,
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    \code{number[i]} is the multiplicity of \code{(x[i],y[i])}.}
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    \code{number[i]} is the multiplicity of \code{(x[i], y[i])}.}
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}
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}
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\seealso{\code{\link{sunflowerplot}} which typically uses
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\seealso{\code{\link{sunflowerplot}} which typically uses
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  \code{xyTable()}; \code{\link{signif}}.
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  \code{xyTable()}; \code{\link{signif}}.
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}
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}
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\examples{
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\examples{
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xyTable(iris[,3:4], digits = 6)
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xyTable(iris[, 3:4], digits = 6)
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## Discretized uncorrelated Gaussian:
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## Discretized uncorrelated Gaussian:
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\dontshow{set.seed(1)}
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\dontshow{set.seed(1)}
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require(stats)
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require(stats)
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xy <- data.frame(x = round(sort(rnorm(100))), y = rnorm(100))
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xy <- data.frame(x = round(sort(rnorm(100))), y = rnorm(100))