xyTable
Multiplicities of (x,y) Points, e.g., for a Sunflower Plot
Given (x,y) points, determine their multiplicity  checking for equality only up to some (crude kind of) noise. Note that this is special kind of 2D binning.
 Keywords
 dplot
Usage
xyTable(x, y = NULL, digits)
Arguments
Value

A list with three components of same length,
 x
 x coordinates, rounded and sorted.
 y
 y coordinates, rounded (and sorted within
x
).  number
 multiplicities (positive integers); i.e.,
number[i]
is the multiplicity of(x[i], y[i])
.
See Also
sunflowerplot
which typically uses
xyTable()
; signif
.
Examples
library(grDevices)
xyTable(iris[, 3:4], digits = 6)
## Discretized uncorrelated Gaussian:
require(stats)
xy < data.frame(x = round(sort(rnorm(100))), y = rnorm(100))
xyTable(xy, digits = 1)
Community examples
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