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############################################################################
#
#	File:     normalize.icn
#
#	Subject:  Program to normalize numeric channel
#
#	Author:   Ralph E. Griswold
#
#	Date:     January 21, 1999
#
############################################################################
#
#  This file is in the public domain.
#
############################################################################
#
#  This program reads numbers, one per line, from standard input and
#  writes them out normalized so that the largest is 1.0.
#
############################################################################
#
#  Links:  numbers
#
############################################################################

link numbers

procedure main()
   local numbers, colors, line, i, largest

   numbers := []

   colors := []
   while line := read() do {
      line ? {
         put(numbers, i := tab(upto(' \t') | 0))
         put(colors, tab(0))
         }
      }

   largest := real(max ! numbers)

   every i := 1 to *numbers do
      write(numbers[i] / largest, colors[i])

end