11.16 Bar Chart Ordered X Axis
%>% ds count(wind_dir_9am) %>% ggplot(aes(x=reorder(wind_dir_9am, n), y=n)) + geom_col() + scale_y_continuous(labels=comma) + labs(x=vnames["wind_dir_9am"], y="Count")
In Section 11.18 a bar chart is shown with
the x axis ordered by the levels of a factor. Often we want to order
the bars increasing (or decreasing) according the bar heights. In this
example we simply add stats::reorder() within the aesthetics to
order by the count (
n in this case).
To order the bars by decreasing heights replace
Your donation will support ongoing development and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984.
Copyright © 1995-2021 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0.