Compile:	cc -O -o cluster cluster.c alloc.c -lmUse:	cluster [vectors] [names]where 'vectors' is the file containing vectors to be clustered,and 'names' is a file containing the name of each vector.Vectors should be organized one per line, => with a trailing blank beforethe carriage return.  Names should be organized similarly; the orderof vectors/names should be the same in both files.'names' is a sample names file; 'vector' is a sample vector file.  Note thatwhereas names must not have any embedded white space, elements in vectorsmust be separated by white space.----The program has been enhanced with numerous options to make it moreflexible in interfacing with other applications.  See the the man page fordetails.To generate the program, edit the Makefile according to your preferencesand type `make'.  It is know to compile and run os Sun3 and Sun4 systemsunder SunOS 3.5 and 4.1.Comments and bug fixes requested.Andreas Stolcke (stolcke@icsi.berkeley.edu)10/12/90-----The second enhanced release has even more options and supports principalcomponent analysis.RTFM page !!!A. Stolcke4/20/91-----The first release after beta testing (nobody found the glaring bug in thememory allocation macro ...) has curses support added.A. Stolcke7/14/91-----New in release 2.3:* Eigenvectors are now stored one-per-line, so as to be compatible with  input/output format.  Old eigenbases will have to recomputed, or the   contents of files used with -e can be transposed.* A new option, -E, allows printing the eigenvalues determined in PCA.A. Stolcke2/11/92----New in release 2.4:* Saved some unnecessary memory allocation for patterns.* Distance matrix needs only 1/2 the space it used before (this is the  bulk of total memory size, so big win here).* 20% runtime improvement by making a trivial change in the way the  distance matrix is scanned.A. Stolcke1/15/93---New in release 2.5:* Cluster implementation changed to use O(n^2) time and O(n) memory  (was O(n^3) and O(n^2), respectively).* Added BENCHMARKS file and test/ subdirectory.A. Stolcke1/20/93* Added some info about the cluster algorithm, to be found in the  ALGORITHM file.A. Stolcke1/21/93---New in release 2.6:* Cluster output as binary code vectors (-B option).A. Stolcke2/2/93----New in release 2.7:* Use IEEE NaN instead of infinity for D/C value representation* Include test program to verify that it works (make testm).This version has been tested on	Sun4/SunOS4.1.x,	DECstation/Ultrix4.3	NeXT/Release 2.1	HP 9000s700/HP-UX 8.07A. Stolcke3/1/93---New in release 2.8:* Included MAIL from fmurtagh@eso.org with more background info about  clustering algorithms and other software packages.A. Stolcke4/28/93New in release 2.9:* Fixed a memory (de)allocation bug in pca, found by Nici Schraudolph.A. Stolcke1/10/96