jmeter to flot

#!/usr/bin/env ruby

require 'rubygems'
require 'xmlsimple'
require 'flotr'

log = XmlSimple.xml_in('blah.log')

f = Flotr::Data.new(:label => "Total Response", :color => "red")

log['httpSample'].each_with_index do |r,i|
  f << [i, r["t"].to_i]
end

plot = Flotr::Plot.new("Total Response Times")
plot.comment = "Total response time for all page resources"
plot.options = {:legend_position => "ne", :points => 'true'}
plot.height = 480
plot.width = 800
plot.label = {:X => "Response Time (ms)"}
plot << f