| xyTable | R Documentation |
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.
xyTable(x, y = NULL, digits)
x, y |
numeric vectors of the same length; alternatively other
(x, y) argument combinations as allowed by
|
digits |
integer specifying the significant digits to be used for
determining equality of coordinates. These are compared after
rounding them via |
A list with three components of same length,
x |
x coordinates, rounded and sorted. |
y |
y coordinates, rounded (and sorted within |
number |
multiplicities (positive integers); i.e.,
|
sunflowerplot which typically uses
xyTable(); signif.
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)
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