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Drill Down in Tight Spaces

2025-02-06 by Johan de Groot

A different way to make drill down possible/usable in a small sheet.

Sometimes you don’t have all the space to do what you want.

Or you are almost finished with a dashboard, and suddenly someone mentions: “Wouldn’t it be nice if we could drill down on this chart…” – but the sheet is just too small for another column. There are multiple ways so solve this issue – each with its own pros and cons. Viz-in tooltip (hard to read on larger drill-downs), hiding nearby sheets (tedious), enlarging the row-height (ugly when not drilled-down), misusing totals (even uglier), …

In this article I describe a different solution – which definitely has its disadvantages, but can be useful in certain situations where the drill down functionality is important.

[Read more…] about Drill Down in Tight Spaces

Clean your BANs – 3 simple tips

2025-01-28 by Johan de Groot

Three easy to implement tips on BANs: the Big Ass Numbers you put on top of your dashboard.

BANs are a common and good way to display important figures. But while they are seemingly easy to implement, often they can be improved to make them more effective.

[part of the ‘Datafam London 2024 – Deepcleaning your dashboard’ series]

[Read more…] about Clean your BANs – 3 simple tips

Line-chart: betters ways to compare years

2025-01-23 by Johan de Groot

Line charts are one of the best and popular ways to show how data has developed over time. It’s a simple graph that is familiar to anyone, but the default generated can often be improved – either in Tableau, Excel or any other tool.

In this blog post I want to show how a relative small change in a line chart can result in a big improvement.

[part of the ‘Datafam London 2024 – Deepcleaning your dashboard’ series]

[Read more…] about Line-chart: betters ways to compare years

Deep Cleaning Barcharts – part 2: Punctuated Bar Chart

2025-01-16 by Johan de Groot

[part of the ‘Datafam London 2024 series]

In part 1 we took a look at a basic bar chart, and ended with the lollypop chart. A fun chart with one major issue: the dot obfuscates the real datapoint.

Punctuated Bar Chart

One solution for it the Punctuated Bar Chart:
We highlight the end of each bar, instead of enlarging the endpoint.

[Read more…] about Deep Cleaning Barcharts – part 2: Punctuated Bar Chart

Deep Cleaning Barcharts – part 1: the basics

2025-01-16 by Johan de Groot

[part of the ‘Datafam London 2024 series]

On DataFam 2024 in London I gave a presentation / workshop on deep cleaning dashboards.

Why cleaning dashboards?

  • Make it look better ▶ Users want to use it
  • Less clutter on your dashboard ▶ Less clutter in your brain
  • Making your dashboard more actionable ▶ Focusing on what’s important.

Dashboard cleaning is about: Removing, adding , re-arranging, and replacing stuff. In Tableau, it’s about: Table calculations, extra sheets, changing images, talking to users, being critical to yourself, … Is hard work – and a lot of fun!

[Read more…] about Deep Cleaning Barcharts – part 1: the basics
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