Eating humble pie – pie charts or not?
Pie charts are probably the most ubiquitous data visualization form. However, there is a debate regarding their effectiveness. To summarize, humans are not very good at distinguishing and comparing area or angles. Pie charts use both of these mechanisms to convey a message about the data.
There is a temptation to use lots of pie charts when visualizing data. Why? Because people like them. However, they take up a lot of space on one page to give one message on the data. It isn't possible, for example, to show timelines very effectively, and they can't be used to convey multi-dimensional data properly.
In this recipe, we will look at creating a pie chart in Tableau, and then we will take a look at a better way ...
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