Introduction In this week’s challenge, we’re going to recreate a very small part of Kathryn McCrindle’s (Linked In / X ) #TC25 Iron Viz. Kathryn is a colleague of mine at Biztory, and made it through to the Iron Viz final at TC25 in San Diego. In 20 minutes, she built this impressive suite of […]
#WOW2025 | WEEK 24 | Can you Iron Viz? Read More »
Introduction Have I ever talked about how much I love table calcs? They are super powerful and often more performant than the often overused LOD expression. So that’s what we’re going to practice this week. Can you create a control chart only using table calcs? Click to open in Tableau Public Requirements 1 sheet create
#WOW2025 | 23 | Can you build a control chart Read More »
Introduction It’s Stanley Cup Playoff day, and I must EDMit I have a preference for who I’d like to win. This week, I’m revisiting an old challenge I made and improving it by using Sigma’s new “Transpose” functionality. This little gem slipped in without me noticing and has been a beautiful addition to my Sigma
2025 Week 23 | Sigma: Can You Compare Two NHL Teams? Read More »
Introduction What do you want to highlight on hover? Practice with the Deneb Custom Visual. This week’s challenge was created using the Deneb custom visual in Power BI. I was inspired by the many examples on the Vega-Lite website. The chart displays Sales and Profit grouped by country and segment, based on a sample Power
2025 Week 23 | Power BI: Highlight on Hover with Deneb Read More »
Can you create a modal? Introduction Think a bran muffin is a healthier choice than a breakfast sandwich? Think again. This week’s challenge throws Starbucks and McDonald’s into the ring — matching menu items with the same calorie count but wildly different nutritional makeups. Spoiler: one of them is a lentil bowl, the other is
2025 Week 22 | Sigma: Do You Modal? Read More »
Introduction Happy Wednesday Power BI Folks! This is my first time creating a Power BI Workout Wednesday exercise, and I’m excited (and a little nervous) to share it with you all! Thank you for being part of my learning and teaching journey. Let’s grow together! Have you ever wanted to create a Lollipop Chart in Power BI
2025 Week 22 | Power BI: Create a lollipop chart Read More »
Introduction This week’s challenge is inspired by Robbin Vernooij & Lorna Brown’s talk from Tableau Conference this year (TC25) titled ‘Taming the Beast: Normalization Strategies in Tableau’ Normalization allows us to examine the relative importance of values that may be on completely different scales. A common example of where we use normalization is when we
#WOW2025 | Week 22 | Data Normalization Methods Read More »
Introduction When looking at timeseries data, we may encounter high variability from one week to the next, creating highly jagged and difficult to read charts. There are a number of techniques to smooth the lines to better depict trend. Some may use rolling averages, others, like YouGov, use LOESS regression. https://yougov.co.uk/topics/society/trackers/how-often-brits-exercise In this weeks challenge
2025 Week 21 | Power BI: Scatterplot / Timeseries Smoothing Read More »
Introduction This week, we’re building a market basket or matrix analysis to help us understand the frequency of combinations. For this week’s challenge, we’re looking at which Food Trucks have the most customers in common. Have Fun! Katrina Need access to Sigma? Click Here to Sign Up Link to WOW Sigma Instance Youtube Click here
2025 Week 21 | Sigma : Can you Combo Like that? Read More »
Introduction This challenge centers on the Drill Down Tree.It was inspired by a real-world request: “Is there an easy way to build one in Tableau?” In the end, the challenge I devised may not be straightforward—but I encourage you to give it a try! Click to open in Tableau Public Requirements Dashboard size: 1000 ×
WOW2025 | Week 21 | Can you make a drill down chart? Read More »
