Then(/^I should be able to cluster the result and print statistics$/) do
  pending
  # f=Tempfile.open('arff'); f.write @result; f.close
  # clustering = Weka::Clusterer::SimpleKMeans::Base
  # clustering.set_options "-N 5"
  # clustering.set_data(Core::Parser::parse_ARFF(f.path))
  # f.unlink
  # clustered = clustering.new
  # puts clustered
end