Pie Charts

Kevin Feasel

2016-11-21

R

Peter Ellis defends pie charts under very specific circumstances:

The usual response from statisticians and data professionals to pie charts ranges from lofty disdain to outright snobbery. But sometimes I think they’re the right tool for communication with a particular audience. Like others I was struck by this image from New Zealand news site stuff.co.nz showing that nearly half the earthquake energy of the past six years came in one day (last Sunday night, and the shaking continues by the way). Pie charts work well when the main impression of relative proportions to the whole is obvious, and fine comparisons aren’t needed.

Here’s my own version of the graphic. I polished this up during a break while working at home due to the office being shut for earthquake-related reasons:

Consider me in the lofty disdain camp.  That said, this is probably the best case scenario for a pie chart:  when looking at relative percentage of one dominant element versus the remaining set.

Related Posts

Predicting Intermittent Demand

Bruno Rodrigues shows one technique for forecasting intermittent data: Now, it is clear that this will be tricky to forecast. There is no discernible pattern, no trend, no seasonality… nothing that would make it “easy” for a model to learn how to forecast such data. This is typical intermittent demand data. Specific methods have been […]

Read More

Learning R Versus Python

Andy Kirk shares the results of a rather informal Twitter poll: Yesterday I ran a simple Twitter poll about the relative ease of learning R vs. Python. Although a correct answer to this query will ALWAYS have to be based on nuances like pre-existing skills and the scope of need, this originates from people telling […]

Read More

Categories

November 2016
MTWTFSS
« Oct Dec »
 123456
78910111213
14151617181920
21222324252627
282930