Brandon Fitz-Gerald

Brandon Fitz-Gerald

Brandon Fitz-Gerald

After completing a degree in Chemistry and a PGCE at the University of Nottingham, Brandon looked for a slight change of direction. Throughout his degree and jobs he had in the years following, Data Analysis always interested him, and after coming across the Data School and Tableau it seemed like a perfect opportunity. Brandon was drawn to how accessible Tableau made data to the user.

Outside of work Brandon enjoys playing dodgeball and other niche sports.

How to create a Sankey chart.

How to create a Sankey chart.

While Sankey charts may seem daunting at first, they’re a great way to show a change of flow between more than one category or condition. For this example we’re looking at how the sum of sales changes between Regions and Categories in the Tableau Superstore data.

Spark interest with a sparkline.

Spark interest with a sparkline.

Sparklines are a tiny chart, usually drawn without axes, that enables you to quickly compare trends over given values. I’ve found they’re a great way to compare trends in values over time. You might use a sparkline to compare seasonal increases or decreases, stock market values or to highlight the maximum (or minimum) values.

Filter order of operations for Tableau.

Filter order of operations for Tableau.

During the DS20s first ‘Tableau Fundamentals’ lesson today, we were introduced to the idea of having multiple filters in one sheet. The questions on everyone’s mind: “What order will the filters happen in?” and “Can we change which order the filters happen in?”. The answer to these questions lies in the Order of Operations.