ab-gnuplot-smooth-by-sec.rb

#!/usr/bin/env ruby

# Sat May 27 17:56:34 2017        1495875394      0       773     773     772
# Sat May 27 17:56:39 2017        1495875399      0       773     773     765
# Sat May 27 17:56:18 2017        1495875378      0       773     773     771
# Sat May 27 17:56:19 2017        1495875379      0       774     774     771
# Sat May 27 17:56:19 2017        1495875379      0       774     774     770
# Sat May 27 17:56:19 2017        1495875379      0       774     774     772

smooth_data = []

$stdin.each_line do |l|
  new = l.split("\t")
  next if new[0] == "starttime"
  old = smooth_data[-1]
  if old && old[0] == new[0]
    smooth_data[-1] = [old[0],
                       old[1],
                       (old[2].to_i + new[2].to_i) / 2,
                       (old[3].to_i + new[3].to_i) / 2,
                       (old[4].to_i + new[4].to_i) / 2,
                       (old[5].to_i + new[5].to_i) / 2]
  else
    smooth_data << [new[0],
                    new[1],
                    new[2].to_i,
                    new[3].to_i,
                    new[4].to_i,
                    new[5].to_i]
  end
end

smooth_data.each do |d|
  puts "#{d[0]}\t#{d[2]}\t#{d[3]}\n"
end