CHsharp: Choi and Hall Clustering in 3d

Functions that cluster 1-3 dimensional data into their local modes. Based on a convergent form of Choi and Hall's (1999) data sharpening method. Note: sharp3dB is much faster than sharp3d if data is ordered in at least one dimension.

Version: 0.3
Depends: scatterplot3d, KernSmooth
Published: 2012-11-05
Author: Douglas G. Woolford
Maintainer: W. John Braun <braun at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
In views: Cluster
CRAN checks: CHsharp results


Reference manual: CHsharp.pdf
Package source: CHsharp_0.3.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Snow Leopard binaries: r-release: CHsharp_0.3.tgz, r-oldrel: CHsharp_0.3.tgz
OS X Mavericks binaries: r-release: CHsharp_0.3.tgz
Old sources: CHsharp archive