Eric Heidbreder

2024 Week 27 | Sigma: Can you create a Cashflow Chart?

Introduction I’ve always liked tracking my personal finances, partly out of necessity (I was a freelance musician for nearly a decade and I needed to keep track of *every* expense). Even before I got into data, I appreciated seeing my personal finances visualized cleanly so I could answer questions like ‘Did I spend too much …

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2024 Week 24 | Sigma: Can you add custom map layers?

Introduction A few weeks ago, the 19th Police District of Chicago emailed me with some interesting survey data. The visualizations were useful, but they were living inside of a Google Slides presentation, and I wanted to dig deeper into the results. Thankfully, I followed my nose to their community survey website and found that they …

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2024 Week 21 | Sigma: Can you set some boundaries?

Introduction This week, I was inspired by a post in the Sigma Community from Mark Ruesink that showed a really clever way to visualize outliers in Sigma using a combo chart and some clever calculations. Mark goes all the way to visualizing outliers, so I definitely recommend checking out his full post, but I wanted …

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2024 Week 19 | Sigma: Can you clean a string?

Introduction After last week’s awesome product launch, I was thinking about some of the Sigma features that we have not yet highlighted in Workout Wednesday. One of those is Custom Functions, and while the ability to create Custom Functions is currently reserved for admins, it’s a great feature for users to be aware about when …

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2024 Week 13 | Sigma: Can you compare two teams?

Introduction We’re deep in the March Madness tournament, so what better way to celebrate than by digging into some NCAA data? This weeks challenge is one that shows a creative way of comparing two entities based on similar stats. I’m actually not sure if there’s a better way of handling this challenge, so I would …

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2024 Week 10 | Sigma: Can you recreate this combo chart?

Introduction This week’s challenge is going to be longer than usual, mostly because I wanted to showcase dark mode along with a combo chart. If you’re not familiar with what a combo chart is, it can represent multiple columns using different shapes. Bars, lines, areas, and points are all fair game in a combo chart, …

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Screenshot of some text that displays a secret message

2024 Week 6 | Sigma: Can you keep a secret with Row Level Security?

Introduction This week’s challenge features *secret messages*! It’s not a flashy visual, but it showcases two important features of Sigma that any developer *must* know: Input Tables and Row Level Security. Input Tables allow Sigma users to interact with the data warehouse directly by manipulating tables at the cell-level in Sigma. These input tables can …

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2024 Week 2 | Sigma: Can you recreate this drillable bar chart?

Introduction Let’s keep the new year rolling! I’m Eric, and I’m really excited to host this week. Thanks to all the folks who have participated so far, we look forward to seeing more of your submissions this week. Today, I’m excited to give you a challenge that gets you familiar with drilling in Sigma. Let’s …

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