Josh Pepper Susan Kegley, Ph.D. Overview

 What is a motion ?  What does “multidimensional” mean for PUR ?  Motion chart examples with PUR Data:  Bar  Bubble Charts  Line Charts  Advantages and Limitations Traditional Scatter : Fertility Rate vs. GDP by Country

 Correlation of two quantitative parameters  Uniform Size Points  2 dimensions  X-Axis (GDP)  Y-Axis (Fertility Rate)

Source: CIA World Factbook What is a Motion Chart?

 Five Dimensions:

• X-Axis (Life Expectancy)

• Y-Axis (Fertility Rate)

• Point Color (GDP)

• Point Size (Population)

• Time (1960 – 2008) What does Multidimensional Mean for PUR Data?  Parameters used in today’s example data: 1) Acres Treated with Pesticide (All California) 2) Pounds of Pesticide Used (All California) 3) Application Rates 4) Percent Aerial/Ground Applications 5) Time • By year, month, week, day

 Many more dimensions of data: • Chemical Use & Classification • Location of Pesticide Use by County, MTRS, Grower_id Chemicals With Chronic Toxicity to Bees

 Import data from Excel spreadsheet or other data formats Static

Use of Chemicals with Chronic Toxicity to Bees in 2005 Acres Treated with Chemical Treated Acres

Chemical Chemicals with Chronic Toxicity to Bees: Motion Bar Chart for 2005-2009

 Three Dimensions of Data - Chemical, Acres Treated, Time  Dynamic Axes Chemicals Chronically Toxic to Bees: Bubble Line Chart for 2005-2009

 Multidimensional data for each chemical: • Acres treated, time, % aerial apps, pounds chemical used  Identifying outliers visually Weekly Use of Chemicals for 2009: Dynamic Line Chart

 Easily transition between Bubble Line Chart, Line Chart & Bar Chart  Auto-scaling Line Chart  Dynamic Axes Advantages and Limitations of Google Motion Charts

 Advantages  Easy to learn and use  Uses the power of Google’s servers  Uses “cloud computing”  Publish as webpage or embedded graphic  Substitutes for other graphing programs  Free

 Limitations  Requires internet connection (or video screen capture)  Automatically interpolates data  No linear regression or other statistics Summary

 Visualize change in many dimensions of data over time  Easily share your charts on the internet  More potential with motion scatter plots  Correlation of two quantitative parameters  PUR Data correlated with other data sets  More information:  Google Motion Charts:  http://code.google.com/apis/visualization/documentation/gallery/mot ionchart.html  Hans Rosling: TED Talk about dynamic data  http://www.ted.com/speakers/hans_rosling.html