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Objectives for todayAs more data is available:1. Understand the importance and role of data2. Explore visualization tools that help you work with data
Part 1: Importance and role of dataData is a collection of facts and observations – such as:• measurements• numbers / counts• description of things This orange tabby cat weighs 14 lbs.This past Saturday,May, 5, 2012, thehigh temperature In 2009, there were 35,843was 71oF. students at UC Berkeley.
Data is importantHelps you to:• understand the world• make decisions Leads to wisdom
How does data lead to wisdom? Wisdom Knowledge Information Data
Data InformationInformation describes a situationanswering who, what, where,how many, and when questions.The majority of the CAL PrepSenior class of 2012 prefers_______ products.
Information Knowledge Knowledge is when you process information and apply it or put it into action. If I were to bring you lunch, I would buy more _____ products.
Knowledge WisdomWisdom is the ability to increase effectivenessor the ability to do the right thing – that buildsfrom our knowledge. Wisdom • Important to survey people’s preferences • Advocate for soft drink diversity at Cal
DIKW summary • Survey students beforehand Wisdom • Advocate for change • Buy _____ for CAL Prep ClassKnowledge of 2012 • Majority preferInformation ________ • __ preferred Pepsi Data • __preferred Coca- Cola
Part 2: Data visualization to the rescueWith automated collection of data,more and more is available – and for free! http://www.data.gov/
Raw data is boringPercent of population (over the age of 2) meeting foodgroup recommendations
Data visualizations Easier to understand data Our eyes have a lot of bandwidth Visuals helps us process large amounts of data • Graphs • Maps • Animations What US regions are eating
Data visualization as art Aaron Koblin , Flight patterns
Interactive data visualizationsHow do Americans spend their day? NY Times
Interactive data visualizationsCan process more informationHelp you see patterns quicklyCustomize analysis to your specificquestions