date calculation

#WOW2026 | Week 18 | Let’s Visualize TC25! (#TC26 Live Edition)

Introduction This challenge was released at the TC26 Workout Wednesday session. Whether you’re here in the room or finding it later, I hope you’ll have fun! In this challenge, we’ll visualize the sessions of Tableau Conference itself. Three difficulty tiers are available, so pick the one that matches your confidence and give it a try. […]

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Tableau, Workout Wednesday

#WOW2026 | Week 5 | KPI Trend Monitor with Period Comparison

Introduction Thanks to tools like Tableau MCP, AI can now handle deep-dive data analysis for us. Ask it “why is this metric dropping?” and you’ll get a pretty solid answer. But before that step — noticing that something looks off in the first place — that’s still on us, looking at a dashboard. This week,

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Tableau, Workout Wednesday

#WOW2025 | Week 11 | Can you find Sales per Customer by First Purchase Cohort?

Introduction Cohort analysis is always fun to try and figure out how to show enough information without dumping every cohort onto a chart. This challenge looks at cohorts of when a first purchase was made (Superstore data), and subsequent sales to those customers. Are there certain cohorts that continually spend more money? Do certain cohorts

#WOW2025 | Week 11 | Can you find Sales per Customer by First Purchase Cohort? Read More »

Tableau, Workout Wednesday

#WOW2024 | Week 40 | Can you create a brush filter?

Introduction Deciding how to best use the limited space on a dashboard is always a challenge. I’ve often struggled with practical issues, especially regarding the placement of filters. This time, let’s create a brush filter as one way to use the chart itself as a filter. Enjoy the challenge and have fun trying it out!”

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Tableau, Workout Wednesday

2024 Week 30 | Sigma: Can you show partial or whole months?

Introduction This week’s challenge was inspired by a lively discussion I was a part of, covering what date calculations a data analyst should or should not know. We’ve already covered several common ones, such as the current time period vs the prior time period. So this week, I wanted to add another to the list:

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Sigma, Workout Wednesday

#WOW2024 | Week 10 | Can you visualize when it gets busy?

Introduction Hello there! I’m Yoshi and I joined the WOW Tableau coach team this year.I’ve been participating in the WOW challenges since 2020, so I am really honored to be one of the coaches. Here’s my first challenge for you: let’s practice datetime calculations and data densifications. This week, we deal with dummy data regarding

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Tableau, Workout Wednesday