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Showing posts from January, 2019

Graph makeover: Pie crashes

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I noticed a post on linkedIn about a published report with a nice looking chart... that I couldn't really make sense of despite working in the industry for 13 years. So I opened the larger version and looked harder. While it didn't take too long to understand there was a lot of interpretation required and I think I decided it would be a good example for a makeover before I had even finished reading it. And yes, I totally stole the idea of doing a graph makeover . Chart makeover: left - original, right - makeover Ok so firstly, pie charts are generally avoided by the data visualisation community, perhaps most famously by Stephen Few , and for good reason, they are notoriously hard to read and interpret with only a few exceptions. The three rules of Pie I use and recommend are: Don't use a pie chart Don't use a pie chart Try using another chart first (FYI, the main exceptions to the rule are when you only 2-3 catagories and they are of very different sizes.