PrintData.rb

require 'DataPoint'
require 'csv'

class PrintData

	#Printing csv to the files.
	def self.print_csv(datapoints,filename,user_tweets_list)
		CSV.open(filename, "wb",{:force_quotes => true}) do |csv|
				temp = Array.new
				temp << "original_tweet"
				temp << "total_words"
        temp << "total_sentiment"
        temp << "total_nouns"
        temp << "total_users"
				csv << temp
			datapoints.each do |dp|
				temp = Array.new
				temp << dp.original_tweet.gsub(/"*/,"")
				temp << dp.original_tweet.split(/\s+/).length
        total_sentiment = dp.word_array.inject(0) {|result,word| result + word.sentiment.abs }
        temp << total_sentiment
        total_nouns = dp.word_array.inject(0) do |result,word| 
          if word.pos.match(/^NN.*/)
            result + 1
          else
            result + 0
          end
        end
        temp << total_nouns
        total_users = user_tweets_list.inject(0) do |result,tweets|
          if tweets.index(dp.original_tweet)
            result + 1
          else
            result + 0
          end
        end
        temp << total_users
				csv << temp 
			end
		end
	end

end