Peer Assignment1

[plot1](https://cloud.githubusercontent.com/assets/7343414/2939144/9e9d9e38-d938-11e3-9b85-27d5942cd194.png)
[plot2](https://cloud.githubusercontent.com/assets/7343414/2939145/a300018c-d938-11e3-9d38-1f438c468506.png)
[plot3](https://cloud.githubusercontent.com/assets/7343414/2939146/a5c74ff6-d938-11e3-8f2b-62e0767c4aad.png)
[plot4](https://cloud.githubusercontent.com/assets/7343414/2939147/a8c86906-d938-11e3-90e6-f7d72fa82f29.png)