#!/usr/bin/env ruby label1 = "Iris-"+ARGV[0] while line = STDIN.gets line.strip! a = line.split ',' label = -1 label = 1 if a[-1]==label1 a = a[0..a.size-2] f = [] a.each_with_index { |i,idx| f<<"#{idx+1}:#{i.to_f}" } puts "#{label} #{f.join(' ')}" end