新的10年第一篇推送来了，这次我当了回R画图代码的搬运工，这次我们来讨论下如何将箱线图和点图画在一幅图上：我们借用示例数据来说话：
示例data
好，我们上代码：
library(gcookbook)
data(heightweight) #示例数据
#以sex为分类横坐标
ggplot(heightweight, aes(x = sex, y = heightIn)) +
geom_boxplot(aes(x = as.numeric(sex) + .2, group = sex), width = .25) +
geom_dotplot(
aes(x = as.numeric(sex) - .2, group = sex),
binaxis = "y",
binwidth = .5,
stackdir = "center"
) +
scale_x_continuous(
breaks = 1:nlevels(heightweight$sex),
labels = levels(heightweight$sex)
) #将连续型横坐标改变文字，以sex作为文字指标
效果图
我在推特上还看见另外一种写法
d <- data.frame(y = rnorm(20, 9, 2),
group = as.factor(rep(c('Post-FAP', 'Post-DEP'), each = 10)),
id = rep(1:10, 2))
ggplot(d, aes(y = y)) +
geom_boxplot(aes(x = rep(c(-3, 3), each = 10), group = group), fill = 'steelblue') +
geom_point(aes(x = rep(c(-1, 1), each = 10)), size = 5)
这种写法将点图和箱线图以坐标区分开了，效果图：
效果图
感觉还可以哈，重申一下，我是小潤澤，我为自己带盐。
参考：
https://r-graphics.org/recipe-distribution-dot-plot-multi
https://stackoverflow.com/questions/31102162/r-paired-dot-plot-and-box-plot-on-same-graph-is-there-a-template-in-ggplot2?utm_source=dlvr.it&utm_medium=twitter