1、
library(gcookbook) library(ggplot2) p=ggplot(heightweight,aes(x=sex,y=heightIn))+geom_violin() p
2、指定x轴因子水平顺序
heightweight$sex<-factor(heightweight$sex,levels = c("m","f"))p=ggplot(heightweight,aes(x=sex,y=heightIn))+geom_violin() p
