


NSEGMENT(SFS1)    MISC. REFERENCE MANUAL PAGES     NSEGMENT(SFS1)



NAME
     nsegment  -  segment  coefficient  data  into  N  stationary
     regions

SYNOPSIS
     nsegment (-i item) (-n numseg) (-c) file

DESCRIPTION
     nsegment uses a dynamic programming procedure  to  determine
     the  location  of  N-1  boundaries  in time of a coefficient
     item, such that if each region was replaced by its mean, the
     squared  distortion  error would be at a minimum.  The algo-
     rithm is taken from Bridle & Sedgwick, ICASSP 1977.

     Options and their meanings are:

     -I         Identify program and version.

     -iitem     Select input item numbers.

     -nnumseg   Specify the number of segments to divide the item
                into.  Default 2.

     -c         Output the result as a coefficient item.  Default
                output an annotation item.

INPUT ITEMS
     11.xx      Any coefficient data.

OUTPUT ITEMS
     AN         N-1 boundary locations.

     CO         (optional) reconstructed segmented mean spectra.

VERSION/AUTHOR
     1.0 - Mark Huckvale

SEE ALSO
     npoint

SOURCE
     /ptemp/mark/sfs/contrib/ucl/nsegment.c













Sun Release 4.1         Last change: UCL                        1



