visualizing open data with - edmonton public library · city of edmonton | financial and corporate...
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City of Edmonton | Financial and Corporate Services | Open City and Innovation Branch 1
Visualizing Open Data with
Manjot Gill Business Solutions Analyst
Open City & Innovation
[email protected]://ace.edmonton.ca
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ObjectiveLearn how to use Tableau Public to create engaging open data visualizations
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High-Level Agenda
➢Tableau Public Overview
➢Case Study
○ 2016 Municipal Census Data
○ Edmonton Neighbourhood Boundaries
○ EPS Crime Data
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Tableau Public Overview
➢Software tool for creating interactive, sharable visualizations from a variety of data
➢Quick
➢Easy
➢Sharable
➢Free! (with some restrictions)
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Tableau Public Overview
➢Web-based platform for sharing visualizations created with Tableau
Public software
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Tableau Public vs Tableau Desktop
Tableau Desktop Tableau Public
Platform Desktop (Windows/Mac) Desktop (Windows/Mac)
Pricing $999 USD for Personal
$1999 USD for Professional
Free
Features Save locally or publish to the web
Connect to: Google Sheets, Excel, CSV,
oData, most databases
No data source size limits
Publish to the web only. Workbooks and data
are freely accessible to the world.
Connect to: Google Sheets, Excel, CSV, OData,
Data sources have limit of 1 millions rows.
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ActivityCreate a Tableau Public Accounthttps://public.tableau.com/
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ActivityDownload and open an existing workbookhttp://public.tableau.com/profile/city.of.edmonton#!/vizhome/EdmontonStrathconaSt_AlbertSchoolExplorer/SchoolExplorer
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The Tableau Workspace
Marks card
Measures shelf
Pages shelf
Colour legend
Dimensions shelf
Pills
Columns shelf
Rows shelf
Data window
Worksheet
Filter
Size legend
Filters shelf
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Anatomy of a Tableau Workbook
Story (contains a sequence of worksheets or dashboards)
Dashboard (contains one or more worksheets) Dashboard (contains one or more worksheets) Dashboard (displays one or more worksheets)
Worksheet(where you create visualizations)
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Case Study▷ EPS Crime Data
▷ Edmonton Neighbourhood Boundaries
▷ 2016 Municipal Census Data
For each step
1. You’ll be shown how to do it
2. You’ll have additional time to complete the work yourself
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Key Concepts
➢Connecting to text files and oData
➢Text tables, bar graphs
➢Mapping co-ordinates and polygons
➢Data blending
➢Subtotals
➢Number format
➢Calculated Fields
➢Filters
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Case Study Manual:
http://bit.ly/iods2017
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Case Study - Step A
Connecting to a text file
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Case Study - Step B
Creating a text table
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Case Study - Step C
Adding subtotals
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Case Study - Step D
Creating a bar graph
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Case Study - Step E
Adding a filter
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Case Study - Step F
Displaying a value by colour
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Case Study - Step G
Connecting to a text file
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Case Study - Step H
Mapping coordinates
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Case Study - Step I
Mapping polygons
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Case Study - Step J
Blending data
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Case Study - Step K
Displaying a value by colour
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Case Study - Step L
Connecting to oData
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Case Study - Step M
Creating a calculated field
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Case Study - Step N
Blending data
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Case Study - Step O
Creating a calculated field
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Case Study - Step P
Displaying a value by colour
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Case Study - Step Q
Adding a filter
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Case Study - Step R
Creating dashboards
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Case Study - Step S
Publishing to Tableau Public
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Q & AUse this time to ask questions and further explore the data
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Thanks!More questions?
Reach our team at [email protected]
Check out our work at http://ace.edmonton.ca