2D binning
Bin bivariate data x
bin2(x, ab, nbin)
x |
(input matrix with 2 columns) data sample |
ab |
(input 2 x 2 matrix) rows 1 and 2 contain x and y axis bin intervals, respectively. If not specified, the ranges are stretched by 5% at each end for each dimension. |
nbin |
(input vector of length 2) number of bins along x and y axes. Default is 20 by 20. |
bin2 returns a list including the bivariate bin matrix
and the number of points outside the ab rectangle.
x <- matrix( rnorm(200), 100 , 2) # bivariate normal n=100 ab <- matrix( c(-5,-5,5,5), 2, 2) # interval [-5,5) x [-5,5) nbin <- c( 20, 20) # 400 bins bins <- bin2(x, ab, nbin) # bin counts,ab,nskip
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