Topic: Challenge Set 12
Subject: D3
Date: 08/06/2017
Name: Tian Yu
Location: nyc17_ds10/student_submissions/challenges/12-d3/yu_tian/

The D3 Visualization preview link

http://htmlpreview.github.io/?https://github.com/laotianzi/nyc17_ds12/tree/upstream-master/student_submissions/challenges/12-d3/yu_tian/index.html