Bar plot The most common way a pie chart can be improved is by turning it into a bar chart, with categories on the x axis and percentages on the y-axis. This doesn’t apply to all plots, but it does to this one. library(ggplot2) theme_set(theme_bw()) ggplot(d, aes(Hours, Percentage)) + geom_bar(stat = "identity") + facet_wrap(~Task) Note that much like the original pie chart, we “faceted” (divided