2026 Week 07 | Sigma: Tale No One

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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 the modeling.

Key skills you’ll practice:

• Structuring data at the correct grain (company × time)
• Encoding multiple dimensions into a single visual channel
• Working around visualization constraints in Sigma

If your chart looks “too clean,” you probably aggregated something you shouldn’t have 🙂

Give it a shot.

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Note: You will only have view access to WOW Workbooks, Folders, and Workspaces, not edit access. Please create your WOW Workbooks under “My Documents.” We suggest creating a folder to organize all your workbooks. 

Use a dataset with the following fields:

  • company_id

  • company_name

  • year_since_founding

  • revenue_millions

  • growth_group (Rocket Ship, Fast Grower, Slow Grower)

Model

Ensure your data is at this grain:

company_id + year_since_founding
 

Each row should represent:

one company at one point in time

Build the Base Chart

  • Chart type: Line

  • X-axis: year_since_founding

  • Y-axis: revenue_millions

  • Turn OFF: Aggregate values

Show one line per company, colored by growth_group

Challenge

Problem:
Sigma does not natively support:

 
Line = company_id
Color = growth_group
 
Solve the Constraint

Create a calculated column:

Line_Key = [growth_group] & “|” & Text([company_id])
 
Fix the colors

In the color palette:

  • Map all "Rocket Ship|*" → same color

  • Map all "Fast Grower|*" → same color

  • Map all "Slow Grower|*" → same color

Click to Open an Interactive Workbook

Requirements

Dataset

AI Generated

 

Share

After you finish your workout, share on LinkedIn, Sigma’s Community page, (or Twitter) using the hashtags #WOW2024 and #SigmaComputing, and tag Jess Batten, Ashley Bennett, Eric Heidbreder, Katrina Menne, Carter Voekel, and Michal Shaffer!

Create an interactive, sharable version of your solution here.

Also, make sure to fill out the Submission Tracker so that we can count you as a participant this week to track our participation throughout the year.

Solution