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Creation of Empirical Density Functions Based on Multivariate Data.

Based on the input data an n-dimensional cube with sub cells of user specified side length is created. The number of sample points which fall in each sub cube is counted, and with the cell volume and overall sample size an empirical probability can be computed. A number of cubes of higher resolution can be superimposed. The basic method stems from J.L. Bentley in "Multidimensional Divide and Conquer". J. L. Bentley (1980) . Furthermore a simple kernel density estimation method is made available, as well as an expansion of Bentleys method, which offers a kernel approach for the grid method.

Maintainer: Martin Wiegand
Author(s): Martin Wiegand, Saralees Nadarajah

License: GPL-2

Uses: gtools, mvtnorm, plyr, pracma

Released about 1 year ago.

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