How to create a pie chart in R
Pie charts do not represent a lot of value from a statistician’s perspective, but they are a simple way to show proportions in an easy manner to the layman.
> summary = table(mtcars$cyl) > summary 4 6 8 11 7 14 > pie(summary)
standard pie() function does not allow percentages to show up on the
pie chart. We would have to calculate it ourselves manually.
> labels = summary * 100 / sum(summary) > labels 4 6 8 34.375 21.875 43.750 > labels = round(labels) > labels 4 6 8 34 22 44 > pie(summary,labels)