Order groups in a stacked stripchart by sum in R

Question

I have a grouped and stacked stripchart() in R.

stripchart(gear ~ cyl, data=mtcars, method="stack")

cyl are the groups here. I want to groups ordered by its sum. From bottom to top the ordering should be 6, 4 and 8.

How can I do this automaticly in a stripchart?

Have you tried making `cyl` a factor with the order of the levels determined by the group sum? — Jota, Feb 23 '17 at 22:58
@Jota Sounds intereseting and R-like. But I don't know how to order factors by any condition (e.g. `sum`). — buhtz, Feb 24 '17 at 21:09

score 0 · Accepted Answer · edited May 23 '17 at 12:09

0

As mentiont from Jota and with detailed help from How to order factors by condition in R?

Transforming cyl into factor and order it's levels.

mtcars$cyl <- factor(mtcars$cyl, levels=names(sort(table(mtcars$cyl))))

edited May 23 '17 at 12:09

Community

answered Feb 25 '17 at 21:37

buhtz

1 Answers1