Jonathan Allenby

Jonathan Allenby

Jonathan Allenby

Having spent 5 years studying at the University in Kent in Canterbury for his BSc Mathematics and MSc Computer Science degrees Jonathan began putting his analytical skills to work in the IT support sector. However, he soon found he missed being able to use mathematics and lacked a creative outlet.

After researching how to get into data science, Jonathan stumbled across Tableau and the Data School and hasn’t looked back since.

Dashboard Week – Day 1: NHS Trust Expenditure

Our first challenge for our (shorter than normal) dashboard week is the (harder than normal) challenge of obtaining NHS Trust data for expenditures over £25,000 and visualising that data in Tableau. The full details can be found in Andy's post. The Issue The main...

Jon’s DS13 Week 7 Recap

Week 7 of DS13 saw us receiving a break from client projects and instead was back to focusing entirely on learning with a particular focus on spatial data and data preparation. Day 1 We spent Monday covering more Tableau Advanced topics with Dan Farmer. This involved...

Jon’s DS13 Week 6 Recap

Week 6 of the cohort 13 at the Data School was the least lesson-focused week so far, with the focus instead around the project with bursts of teachings sprinkled in. Day 1 Unlike the previous week, this week we were working with clients within our timezone and thus...

Creating a Row Total field in Tableau Prep

Suppose we have a car dealership dataset that has a row for each week of the year and a column for each colour of car indicating how many cars of that colour were sold that week. DATE | Red Cars | Silver Cars | Black Cars | Blue Cars What if we then wanted to create...

Jon’s DS13 Week 5 Recap

This week was a bit of a milestone week for a number of reasons including the fact that it was our first client project and also the week where we all signed up to take the Tableau Desktop Qualified Associate exam! I think one of the trickiest things we encountered...

Jon’s DS13 Week 4 Recap

Day 1 This week kicked off with two days of learning about Alteryx Macros with Phil Lowe. In short, Macros are a workflow packaged into a single tool. The purpose of this can be to provide interactivity to a workflow, make a complex process simple to use, or allow a...

Jon’s DS13 Week 3 Recap

Week 3 covered a real spread of Tableau products including Desktop, Prep, and our first real glimpse into Tableau Server! It was also filled with other exciting (scary) news such as finding out the date for our first teaching-the-public event, as well as finding out...

Jon’s DS13 Week 2 Recap

Week 2 was focused on what brought us all to the Data School in the first place – Tableau Desktop. Almost an entire week dedicated to data visualization best practices, design methodology, and practical Tableau learning

The dangers of rounded bar charts.

Rounded. Bar charts. Just look at those curves. As a newcomer to Tableau the discovery of rounded bars is ground-breaking. Making your first rounded bar chart feels like you’ve transcended from using your Grandad’s clunky square bars to the world of sleek, futuristic...