# Powerful (but Easy) Data Visualization with the Graph Gem

> Last updated: 2011-07-29

Many projects involve large datasets. While humans have evolved to be
master pattern matchers, trying to find patterns and potential issues
by looking at database rows and xml is hard. Creating diagrams is
helpful but manually creating them is time consuming and prone to
error.

The graph gem makes it quick and easy to create visualizations. I’ll
show how to use Nokogiri and graph to get data out of an XML file and
into a format where you can see relationships and patterns. I’ll also
demonstrate some of the advanced features of graph including
clustering and color coding.