citizen428

require 'tweetstream'
require 'rtranslate'
 
TweetStream::Client.new('username','password').track('keyword') do |status|
  puts Translate.t(status[:text], 'en', 'de')
end

citizen428

db = Connection.new(ENV['DATABASE_URL']).db(db_name)
if ENV['DATABASE_USER'] && ENV['DATABASE_PASSWORD']
  auth = db.authenticate(ENV['DATABASE_USER'], ENV['DATABASE_PASSWORD'])
end

citizen428

class Polynomial
  def initialize(coefficients)
    raise ArgumentError, "Need at least 2 coefficients" if coefficients.size < 2 
    @co = coefficients
    @powers = Array.new(@co.size - 2) { |i| "x^#{i+2}"}.reverse << 'x' << nil
  end

  def to_s
    return "0" if @co.all? { |c| c.zero? } # not much to do in this case
    @co.zip(@powers).map do |el| 

citizen428

# This is how you can get a user's location using MacRuby and CoreLocation
framework 'CoreLocation'

def locationManager(manager, didUpdateToLocation: new_location, fromLocation: old_location)
  puts "location: #{new_location.description}"
  exit
end

loc = CLLocationManager.alloc.init
loc.delegate = self

citizen428

# Reincarnation for classes

class Class
  def reincarnate
    buried = Object.__send__(:remove_const, self.name)
    Object.const_set(self.name, Class.new(buried))
  end
end

class Abc

citizen428

class Lucky < [String, Array][rand(2)]; end
puts Lucky.superclass

citizen428

require 'clojure'

class MyClojureObj < Clojure::Object
  def initialize
    dosync { @foo = 'foo' }
  end

  def foo; @foo; end
  def foo=(f); @foo = f; end
end

citizen428

Usage: clj [java-opt*] [init-opt*] [main-opt] [arg*]

  With no options or args, runs an interactive Read-Eval-Print Loop

  java options:
    -<javaopt>        Configure JVM (see `java -help` for full list)
    -d, --debug port  Open a port for debugging

  init options:
    -i, --init path   Load a file or resource

citizen428

Cloud Providers

• Amazon Web Services
• Elastic Server
• Eucalyptus
• GoGrid
• Google App Engine
• Linode - Xen VPS Hosting
• Microsoft Azure

citizen428

(use '(incanter core charts io))
(def usage (read-dataset "report.csv" :header true))

(def instance-types
     (set (filter #(re-find #"BoxUsage" %) ($ :UsageType usage))))

(with-data (->> ($rollup :sum :UsageValue :UsageType usage)
                ($where {:UsageType {:$in instance-types}}))
  (view (bar-chart :UsageType :UsageValue
                   :title "EC Instance Usage"