Binning in 1D, 2D or 3D

The function performs a binning in 1D, 2D or 3D.

binning(x, y, nbins, xrange = NULL)

Arguments

x	design matrix, dimension n x d, `d %in% 1:3`.
y	either a response vector of length n or NULL
nbins	vector of length d containing number of bins for each dimension, may be set to NULL
xrange	range for endpoints of bins for each dimension, either matrix of dimension 2 x d or NULL. `xrange` is increased if the cube defined does not contain all design points.

A list with components

matrix of coordinates of non-empty bin centers

x.freq

number of observations in nonempty bins

midpoints.x1

Bin centers in dimension 1

midpoints.x2

if d>1 Bin centers in dimension 2

midpoints.x3

if d>2 Bin centers in dimension 3

breaks.x1

Break points dimension 1

breaks.x2

if d>1 Break points dimension 2

breaks.x3

if d>2 Break points dimension 3

table.freq

number of observations per bin

means

if !is.null(y) mean of y in non-empty bins

devs

if !is.null(y) standard deviations of y in non-empty bins

This function has been adapted from the code of function binning in package sm.