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The best of two worlds: the scatterplot pie

The best chart is always task-dependent, but let me assume that you would choose the scatterplot as the best chart and the pie as the worst. They are like water and oil: impossible to mix [...]

By | January 30th, 2012|Categories: 09 Chart types: parts of a whole, Chart Types|Tags: |8 Comments

The drummer – a data visualization bedtime story

(...) On the top of the mountain was a plain. There stood an old stone house, and in front of the house lay a great fish-pond, but behind it was a dark forest. He saw neither men [...]

By | January 19th, 2012|Categories: 05 Data visualization, Context|Tags: |Comments Off on The drummer – a data visualization bedtime story

The Unbearable Lightness of Pie Charts [Data Visualization for Excel Users]

Well, a data visualization book cannot avoid pie charts, so here it is, a page about pie charts for my tutorial Data Visualization for Excel Users. Enjoy and comment, please...  

By | January 16th, 2012|Categories: 09 Chart types: parts of a whole, Chart Types|Tags: |6 Comments

12 Data Visualization Questions I Have No Answers For

We stop loving someone or something when we feel there is nothing more to discover, when we have no more questions, when we don't care about the answers. I started writing my Data Visualization for [...]

By | January 12th, 2012|Categories: 14 Effective design, Design|Tags: |14 Comments

Data Visualization for Excel Users: Gestalt Laws

A new page for my tutorial Data Visualization for Excel Users is available. It's about Gestalt laws. Don't forget to leave a comment!  

By | January 10th, 2012|Categories: 02 Human visual perception, Design|Tags: , |Comments Off on Data Visualization for Excel Users: Gestalt Laws

How many meters in a mile? Depends on resolution

Here is an interesting technique: using two y-axis to display the same data at different resolutions. Yellow (BMI) and blue (Weight) lines should overlap (there is a one-to-one correspondence between BMI and Weight [...]

By | January 6th, 2012|Categories: 14 Effective design, Design|Tags: |4 Comments