Ryan Weald rweald

Install the latest version of xcode from the App Store
Install the xcode command line tools. How To Guide
XCode no longer ships with gcc-4.2 as a separate executable as gcc is version 4.2. Therefore you need to symlink it so that ruby can find gcc-4.2.
```
sudo ln -s /usr/bin/gcc /usr/bin/gcc-4.2
```

	require 'mongo'

	require 'tweetstream'

	db = Mongo::Connection.new("dbh13.mongolab.com", "27137").db("ch-diabetes-demo")
	auth = db.authenticate("surfandcode", "irNwHfB3udTEpk9z")

	collection = db.collection("diabetic_tweets")

	stream = TweetStream::Client.new("commithealth", "SDSF202e")

	#!/bin/bash

	echo "removing old versions installed by homebrew"
	brew remove macvim
	rm /usr/local/bin/mvim

	echo "Downloading MacVim Application"

	cd ~/Downloads
	curl -L "https://github.com/downloads/b4winckler/macvim/MacVim-snapshot-64.tbz" -o macvim.tbz

	require 'aws-sdk'
	require 'uuid'
	require 'pry'
	uuid = UUID.new

	dynamo_db = AWS::DynamoDB.new(:access_key_id => "AKIAJLGFC545YHHWOD3A", :secret_access_key => "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")

	dynamo_db.tables.each { \|t\| puts t.name }

	tweets_db = dynamo_db.tables["tweets"]

	name := "DES and AES encryption in Scala"

	version := "1.0"

	scalaVersion := "2.9.1"

	libraryDependencies += "commons-codec" % "commons-codec" % "1.6"

	# Convert any YouTube video into an audio file you can listen to on the go, using:
	# http://rg3.github.com/youtube-dl/

	{ ~ } > brew install ffmpeg
	{ ~ } > brew install ffprobe

	{ ~ } > wget https://raw.github.com/rg3/youtube-dl/2012.02.27/youtube-dl
	{ ~ } > chmod u+x youtube-dl

	# Pick which video format you want to download.. (use any YT video link)

	#!/usr/bin/env ruby

	puts "Please Enter Your MAC Address: "
	mac = gets
	mac = mac.strip

	`sudo /bin/bash -lc "sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -z && sudo ifconfig en0 ether #{mac}"`

	puts "Congratulations you now have #{mac} as your MAC address"

	denominator = @xs.reduce(0) do \|sum, x\|
	sum + ((x - x_mean) ** 2)
	end

	class SimpleLinearRegression
	def initialize(xs, ys)
	@xs, @ys = xs, ys
	if @xs.length != @ys.length
	raise "Unbalanced data. xs need to be same length as ys"
	end
	end

	def y_intercept
	mean(@ys) - (slope * mean(@xs))