How to Train

your

Data Dragon

Leveraging Tableau Prepto tame even the most

challenging data

About Me

Joshua Milligan

Principal Consultant at

Author of

Humbled to be Father of

Blogger at

VizPainter.com

@VizPainter

What are we doing today?

Inventory dragon training tools

Train some data dragons!

Meet some data dragons

We’re going to go fast!!!

Inventory our Tools

Tool #1: Union

Name Occupation Net WorthRey Scavenger 1500Kylo Supreme Leader 400000Snoke Unemployed 0

Name Occupation Net WorthLeia Princess 30000

Han Smuggler (10000)Luke Farmer 100

Name Occupation Net WorthMaul Face Painter 4000Padmé Queen 500000Jar Jar Sith Lord? 100000

Name OccupationNet Worth Table

Maul Face Painter 4000 PrequelsPadmé Queen 500000 PrequelsJar Jar Sith Lord? 100000 PrequelsLeia Princess 30000 OriginalsHan Smuggler (10000) OriginalsLuke Farmer 100 OriginalsRey Scavenger 1500 SequelsKylo Supreme Leader 400000 SequelsSnoke Unemployed 0 Sequels

Tool #1: Union

In Tableau Prep

Tool #1: Union

In Tableau Prep

Tool #2: Join

Order ID Item Cost1 Harness 4002 Sheep 50003 Pigs 10004 Dragon Toys 100

Order ID Return Reason1 Broken4 Didn’t like them

Order ID Item Cost Return Reason1 Harness 400 Broken2 Sheep 50003 Pigs 10004 Dragon Toys 100 Didn’t like them

OrdersReturns

Order ID Item Cost Return Reason1 Harness 400 Broken4 Dragon Toys 100 Didn’t like them

Tool #2: Join

In Tableau Prep

Tool #3: Pivot

Dragon Donkeys Eaten Sheep Eaten Goats EatenSmaug 50 120 20Trogdor 300 10 50

Dragon Animal Number EatenSmaug Donkeys 50Smaug Sheep 120Smaug Goats 20Trogdor Donkeys 300Trogdor Sheep 10Trogdor Goats 50

Tool #3: Pivot

In Tableau Prep

Tool #4: Aggregation

Dragon Animal Number EatenSmaug Donkeys 50Smaug Sheep 120Smaug Goats 20Trogdor Donkeys 300Trogdor Sheep 10Trogdor Goats 50

Dragon Animals EatenSmaug 190Trogdor 360

Animal Number EatenDonkeys 350Sheep 130Goats 170

Or

Or

Animals Eaten550

Tool #4: Aggregation

In Tableau Prep

Combining Tools

Union

Join

Pivot

Aggregation

Calculations

Filtering

Grouping

Cleaning

Combining Tools

In Tableau Prep

Meet some Data Dragons

Let’s meet some Data Dragons

Small & Cute(but messy)

Let’s meet some Data Dragons

Stubborn

Let’s meet some Data Dragons

Twisted

Let’s meet some Data Dragons

Multi-headed

When Confronting a Dragon | C. H. MacLean

Let’s tame some data dragons!

Please complete the

session survey from the

Session Details screen

in your TC18 app

Thank you!

#TC18

Joshua N. Milligan

@VizPainter