CLUSEQ (3sciport)

Searches a vector for clusters of elements matching a target value

SYNOPSIS

  Call CLUSEQ( n, x, incx ,target, index, nn )

ARGUMENTS

  n               Integer.
                  The number of elements to be searched.

  x               Integer, Logical, or Real vector.
                  The input array to be searched.

  incx            Integer.
                  The increment between elements of vector x. For contiguous
                  elements, incx = 1.

  target          Integer, Logical, or Real.
                  The value searched for in vector x.

  index           Integer vector.
                  An output integer vector containing pairs of indices. The
                  first member of each pair indicates the starting index of a
                  cluster of elements in vector x that match the target
                  value. The second member of each pair indicates the ending
                  index of a cluster.

  nn              Integer.
                  The number of clusters found in vector x.

DESCRIPTION

  Subroutine CLUSEQ returns the locations of clusters of elements within
  vector x that match a target value. The locations are recorded in integer
  vector index as pairs of beginning and ending indices.

  For equations and other information, see Volume 3: UNICOS Math and
  Scientific Library Reference Manual SR-2081 7.0, Cray Research, Inc.