11.7 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 11.8 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
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