The Data School Blog

What Exactly Are LOD Expressions in Tableau ?

What Exactly Are LOD Expressions in Tableau ?

Understanding LOD Expressions Tableau offers a lot of features and tools to decipher the complex datasets and meet the diverse needs for data analysis. Among these, LOD expressions, or Level of Detail expressions, are a cornerstone feature in Tableau that enable users...

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Learning from Struggling with Tableau Workout Wednesdays

Learning from Struggling with Tableau Workout Wednesdays

To say that Week 3's presentation was hard would be an understatement. The entire day flew by me as I struggled immensely with my selected Workout Wednesday, and I had to ask for a lot of help to even get started on the data. However, in saying that, I have learnt a...

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Introduction to Tableau LOD Functions

Introduction to Tableau LOD Functions

Introduction to LOD Functions If you're like me you've spent hours putting together the perfect dashboard only for it to be ruined by a filter or dashboard action.  Or perhaps you have had a great idea for a plot but you weren't able to create it using variable you...

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Workflows in Alteryx: Keeping it Clean and Tidy

Workflows in Alteryx: Keeping it Clean and Tidy

Keeping it Clean and Tidy in Alteryx Learning workflows in Alteryx can be a challenge. However, something that can help with that learning process, and beyond, is keeping things neat and tidy. The following text describes some methods that are utilised to keep...

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Three Charts You Should Never Use

Three Charts You Should Never Use

While I understand how exciting it is the first time you create a bubble chart or how cool you think a tree map looks when you are first learning data visualization there is ALMOST always a better option than the three charts listed in this blog.  Data visualization...

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Learning Alteryx – Our Second Presentation

Learning Alteryx – Our Second Presentation

DSAU25's second week of training has been primarily focused on Alteryx, and I found it to be an extremely useful software, however frustrating the learning curve has been. Not frustrating in that it's difficult to use or that the program doesn't work smoothly or do...

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Alteryx Workflows: The Beauty of the Multi-Row Formula

Alteryx Workflows: The Beauty of the Multi-Row Formula

This week, our Friday presentations were all based around an Alteryx Weekly Challenge. My chosen challenge, #168, presented me with a scenario in which 3 6-sided dice would be rolled and their results calculated so that the two largest rolls would be multiplied and...

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Entity Relationship Diagrams (ERDs)

Entity Relationship Diagrams (ERDs)

Entity Relationship Diagrams Entity relationship diagrams(ERD) are a graphical representation that help us understand a particular system. As a result, ERDs are featured frequently in database design. Let’s cover the basics of an ERD. Entity The first part is the...

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5 Tools To Get Started With Alteryx

5 Tools To Get Started With Alteryx

At first glance, Alteryx can seem extremely intimidating but I can tell you that it only takes a short amount of time to understand the basics and the rest will come with time.  While there are numerous tools that allow you to do almost anything you need to the data,...

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Getting Ready for Presentations – Part I

Getting Ready for Presentations – Part I

Getting ready for presentations is quite the task and after completing our first presentations at the data school, I would like to reflect upon my own preparation for presentations. I want this blog to have two parts. The first part will be about what I believe...

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