The health benefits of line charts

I recently bought a pedometer to make sure I walk at least those recommended 10,000 steps a day. As you can see, there is a strong variation, and no meaningful pattern is emerging. Now that I’m blogging about it, I’m sure that will happen soon :). It’s commonly accepted that, when displaying a time series, … Read more

The Consultant’s Chart Revisited

A year ago I wrote a post about the circumplex chart and how consulting firms use charts to increase their price tag. Not all charts, mind: only the ones that the average user don’t recognize from the Excel charts library. Funny enough, I got several messages from consultants asking how that chart was done. So, … Read more

Inconsequential Foreplay

Nathan discusses this chart. He says: I know a lot of you don’t like bubbles in your viz, but this one works for me. Jon Peltier, in the comments, argues that: Sets of bars would have been more effective. Tim adds the definitive argument: “Always using bar charts is like always using missionary position. It … Read more

Irregular Time Series? No. Oversampling.

If you are a market researcher, and you want to make sure that you get more reliable results for a subgroup in a survey, what do you do? You must increase the overall sample size (and spend a lot of money), right? Actually, you don’t. You can oversample that group only, and then weight it … Read more

Focus + Context (a Bar Chart Is Not a Skyscraper)

Textures. 3D. Pie charts. Primary colors. Trends hidden behind labels. Backgrounds. Pie charts again. Clear signs of a bad chart, right? Right. It is so easy to spot a badly designed chart that you can use a computer to do it. Don’t waste your time. Let’s stop discussing the obviously wrong and start discussing the … Read more