2026 Week 12 | Power BI: Custom matrix subtotals and cards with categories

Power BI, Workout Wednesday /

Introduction This week we are looking at some newer core visuals and formatting features: cards that in a segmented tile layout, a slicer that supports partial text matching, and a matrix where the percentage-of-total calculation changes meaning depending on whether you’re looking at a subtotal or a detail row.  The bonus challenge pushes into SVG-in-DAX […]

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Power BI, Workout Wednesday

#WOW2026 | Week 12 | Create a Gauge Chart with Tableau Extensions

Tableau, Workout Wednesday /

Introduction I was recently looking into the Radial Viz Extension after Sunburst support was added in Tableau 2025.3, and realized it can also create gauge charts with ease. Turns out this has actually been possible since the Radial Extension first launched in 2024.2! Building gauge charts in Tableau used to require map layers and dedicated

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Tableau, Workout Wednesday

2026 Week 07 | Sigma: Tale No One

Sigma, Workout Wednesday /

Introduction This week’s challenge: recreate a Tale visualization with a twist. The goal is to show revenue growth over time for 100 companies, grouped into: • Rocket Ships• Fast Growers• Slow Burners The catch? Sigma doesn’t separate “line identity” and “color grouping” the way most tools do. So the real challenge isn’t the chart. It’s

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Sigma, Workout Wednesday

#WOW2026 | Week 11 | Can you use layout containers?

Tableau, Workout Wednesday /

Introduction Every week I’m reminded at how much people struggle with containers in Tableau. So I thought why not make another challenge to see how people get on.  I’ll be giving you the solution file and it’s your job to recreate the same item hierarchy Click to open in Tableau Public Requirements Dashboard Size: 1200×800

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Tableau, Workout Wednesday

2026 Week 10 | Power BI: Dynamic visibility of visuals

Power BI, Workout Wednesday /

Introduction This challenge focuses on a powerful Power BI technique: conditional visibility using overlapping visuals and dynamic transparency. Instead of hiding visuals entirely, you’ll learn to control visibility through background color transparency – making elements appear and disappear based on user selections. Based on the selection of countries, we are looking at differences in foreign

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Power BI, Workout Wednesday

#WOW2026 | Week 9 | Can you build a parallel coordinates chart?

Tableau, Workout Wednesday /

Introduction This week we’re going to build out a parallel coordinates chart – a type of visualisation used to display and compare multiple numerical measures.  My daughter, Mia, is an academy level footballer and wears a stats vest in matches and training to capture lots of data about her performance. I’d been meaning to try

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Tableau, Workout Wednesday