visualizing open data with - edmonton public library · city of edmonton | financial and corporate...

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

ace@edmonton.cahttp://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 ace@edmonton.ca

Check out our work at http://ace.edmonton.ca