UNIQUE  UNIQUE Unique


Usage
 
 Returns a vector containing the unique elements of an array.  The first
 form is simply
 
    y = unique(x)
 
 where x is either a numerical array or a cell-array of strings.  The 
 result is sorted in increasing order.  You can also retrieve two sets
 of index vectors
 
    [y, m, n] = unique(x)
 
 such that y = x(m) and x = y(n).  If the argument x is a matrix,
 you can also indicate that FreeMat should look for unique rows in the
 matrix via
 
    y = unique(x,'rows')
 
 and
 
    [y, m, n] = unique(x,'rows')
 
 