nCoincident

Number of Coincident Points

nCoincident(x, y, bins = 400)

Arguments

x

numeric vector

y

numeric vector

bins

number of bins in both directions

Value

integer count

Details

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.

Author

Frank Harrell

Examples

nCoincident(c(1:5, 4:5), c(1:5, 4:5)/10)
#> [1] 2