precision journalism by steve doig
DESCRIPTION
These slides are by Steve Doig, journalism professor at ASU's Cronkite School and Pulitzer-winning journalist. The slides are from Doig's workshop Excel for Journalists, part of the School of Data Journalism 2013 at the International Journalism Festival, Perugia.TRANSCRIPT
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Workshop data
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Why use “data”?
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Precision journalism
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What is “data”?
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Information -- but not data Steve Doig is a 65-year-old
professor who teaches at Arizona State University in Phoenix.
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Now it’s data!
Last name
First name
Age Title City
DoigSteve 65
Professor Phoenix
Jones Bob 45 Editor Sydney
Smith Tom 34 Reporter Melbourne
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Getting data WOBBING.EU
Wet Openbaarheid van Bestuur (Open Government Act)
ISTAT.IT Request from agencies Build your own?
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History lesson
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Recent “big data” stories Education cheating (USA
Today) UK MPs’ spending (Guardian) Medicare fraud (CalWatch) EU fishing subsidies (ICIJ)
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More examples Budgets and taxes Crime patterns School test scores Auto accidents Demographic change Pet licenses Air quality Sports statistics
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Data journalism tools Analysis:
Spreadsheet (Excel)
Database (Access) Mapping (ArcMap) SPSS, SAS Text editor Social network
analysis (NodeXL)
Presentation: Google fusion
tables Ruby, Django,
perl, python, et al.
Photoshop
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Patterns and outliers
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Data power tool: MS Excel
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A blank spreadsheet
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What Excel can do Import data from many formats Sort data by one or more variables Filter data to show only selected
rows Transform data using functions
and formulas Summarize data into categories
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Importing data Common formats
*.xls (or *.xlsx) Fixed-width text Delimited text (comma, tab, etc) *.dbf files (old dBase) HTML tables
Data Import Wizard will help
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Delimited text example
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Sorting a table
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Now it’s sorted
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Filtering: Data…Filter…Autofilter
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Pick a category…
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…and see just that
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Transforming data Math functions
Add, subtract, multiply, divide Average, median, maximum, minimum
Date/Time functions Day of week, days between
Text functions Extract parts of text strings Search and replace text
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Function Wizard (ƒx)
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Function Wizard (ƒx)
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Summarizing data
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Example data
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Pivot table example Data: Region, province, population,
murders, etc. Question: “How many murders
occurred in each region?” Visualize the piece of paper that
would answer the question
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Building a pivot table
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Pivot table
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Sorted pivot table
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Data journalism resources
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DataJournalismHandbook.org
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Publications
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DOMANDE?