Workout Wednesday

2025 Week 21 | Power BI: Scatterplot / Timeseries Smoothing

Power BI, Workout Wednesday / By

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 …

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2025 Week 21 | Sigma : Can you Combo Like that?

Sigma, Workout Wednesday / By

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 …

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WOW2025 | Week 21 | Can you make a drill down chart?

Tableau, Workout Wednesday / By

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 × …

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2025 Week 20 | Sigma: Can you find the most popular?

Sigma, Workout Wednesday / By

Introduction Welcome to Week 20 of 2025! This week, I’m going to be a little less prescriptive than I have been in the past.  This week isn’t too difficult if you’re familiar with some of Sigma’s long-standing features, like table groupings and lineage. I believe in you!   You are going to learn to use a …

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#WOW2025 | Week 20 | Let’s Practice Multi-fact Relationship Data Model

Tableau, Workout Wednesday / By

Introduction In this challenge, we will explore the Multi-Fact Relationship Data Model feature introduced in the 2024.2 version. This feature enables us to seamlessly connect and analyze multiple fact tables within a single data source. It’s exciting as a Tableau datasource can behave like a small database! Here are some materials for those who are …

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2025 Week 20 | Year-over-Year Selected Metric Trends

Power BI, Workout Wednesday / By

Introduction Welcome to Week 21 of 2025! This report allows users to select a performance metric (e.g., Revenue) and compare its values across 2024 and 2023. It provides a flexible way to explore year-over-year changes and spot trends or anomalies through interactive visuals. Good luck! -Andrei Requirements Main Visual: Area Chart with Year-on-Year Comparison Green …

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2025 Week 19 | Sigma: Can You Get Your Stat Sheet?

Sigma, Workout Wednesday / By

Introduction Aside from Battlebots Championships, NHL Stanley Cup Playoffs are my favorite sporting event of the year. And I think the logos are all so beautiful that they should be front and center when building out interactive data applications in Sigma. I always take opportunities like this to show off the ability of Sigma to …

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#WOW2025 Week 19: Can you create stars & reference lines?

Tableau, Workout Wednesday / By

Introduction Some of you may have seen this challenge as I got my weeks all confused but here we go. Coming fresh off of Tableau Conference and I loved seeing different use cases and tricks. So part of this comes from a tips session with Nhung Lee. And well obviously some additional techniques because I …

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2025 Week 18 | Sigma: Can You Re-imagine This Map?

Sigma, Workout Wednesday / By

Can you re-imagine this influential map? Introduction In 1854, Dr. John Snow mapped cholera deaths in London to investigate how the disease was spreading. At the time, most believed cholera came from “bad air.” Snow used mapping to reveal a strong cluster of deaths around a single water pump on Broad Street, proving that contaminated …

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