This distribution contains the KDTREE, KDTREEIDX and KDRANGEQUERY functions.Included are the source code files in kdtree/src, as well as precompiledmex files for the following systems:  - Mac OS X     (Matlab 6.5)  - Redhat Linux (Matlab 6.5)  - Windows      (Matlab 6.1)Two demo scripts are provided (kdtree_demo.m & kdrange_demo.m).The new features added June 2004:	+  You can now use N dimensional data points, where N>3.	+  Use KDTREEIND to return the index value to the closest point, 	   instead of the closest point values.	+  KDRANGEQUERY can now return these index values as well.Written by / send comments or suggestions to : Guy Shechter guy at jhu dot edu June 2004