Can you create a data request and approval app? Introduction This week, we’re moving beyond analysis and into data apps. We’re going to solve one of the most persistent problems in any data-driven organization: data quality. The challenge isn’t just to clean data. It’s to build a complete, self-service system that empowers your business users …
2025 Week 34 | Sigma: Let’s Request Some Data Changes Read More
Introduction When building reports, one of the most common requests I hear from users is: “Can I see the top three, top five, or top ten items without having to look at multiple visuals?” The good news: yes, you can! And it’s cleaner than ever with numeric range parameters in Power BI. In this week’s …
Introduction I’ve been playing around with Tableau MCP and something called “Vibe Analytics” lately (look them up if you’re curious!).This week’s challenge was inspired by working with a generative AI to analyze the Sample Superstore dataset, exploring ways to break down profit into its key drivers and compare year-over-year performance. Have fun building this waterfall …
#WOW2025 | Week 34 | Can you breakdown YoY profit into its drivers? Read More
Introduction Welcome to Week 33 of 2025! We’ve all been there: you want to cross filter a dashboard by clicking on a field, and just as easily clear the selection. With charts, it’s easy – just click the white space. But with tables, it can be a little trickier. This week’s challenge: master cross-filtering from …
2025 Week 33 | Sigma : Can you cross filter tables? Read More
Introduction It’s good to be back again, and a bit sooner than last time! This time, we will be creating a visual using Deneb. Deneb has featured a lot in WoW, which I’m very grateful for, but I’ve yet to submit and exercise for it. As such, I wanted to try something that would help …
2025 Week 33 | Create a Circular Heatmap with Deneb Read More
Introduction I created this viz to show off some crazy golf scores from my latest cohort at The Data School, especially to show off the fact I won. But I added in some Table Calculations and other bits to add some context, I thought it would make a good challenge. Click to open in Tableau …
#WOW2025 Week 33: Can you recreate this Marginal Histogram Read More
Introduction Welcome to Week 32 of 2025! This week, we’re going to have a little summer fun comparing roller coasters. This prompt is less prescriptive than usual to give you the freedom to let your creativity flourish. Where do your favorites fall? Good luck! -Ashley Need access to Sigma? Click Here to Sign Up Link …
Introduction Tableau has released several spatial capabilities over the last year, and they continued that trend in 2025.2, adding dynamic spatial parameters, which allow you to filter data by map viewport, among other things. We’ll go back to the US school data I’ve used for the other spatial challenges we’ve done this year, so this one …
#WOW2025 | Week 32 | Can you use Dynamic Spatial Parameters? Read More
Introduction This week, we’re cooking up something a little different – waffle charts! Your challenge is to build a report that compares actual sales to a dynamic monthly target and visualizes progress in a clean, impactful way. Requirements Get and Prepare Data Start by downloading the CSV file provided. It contains 8 columns: ORDERNUMBER QUANTITYORDERED …
2025 Week 32 | Build a Waffle Chart using Core Visuals Read More
Introduction Living in Chicago, one of my favorite things to do is visit parks. Some are small, some are gigantic, and it’s often that I don’t really know all the options my local parks have to offer. I wanted to build this quick app off of Chicago Parks District data to help find parks near …
