nCoincident
Number of Coincident Points
nCoincident(x, y, bins = 400)
x: numeric vectory: numeric vectorbins: number of bins in both directionsinteger count
Computes the number of x,y pairs that are likely to be obscured in a regular scatterplot, in the sense of overlapping pairs after binning into bins x bins squares where bins defaults to 400. NAs are removed first.
nCoincident(c(1:5, 4:5), c(1:5, 4:5)/10)
Frank Harrell