垂直中心线

时间:2019-11-27 20:46:43

标签: r ggplot2 broom

对于以下示例,让我想在x轴的值1处添加垂直中心线。我尝试了geom_estcihttp://ggepi.lukewjohnston.com/reference/geom_estci.html),但是我的R找不到geom_estci函数。我同时安装了ggplot2库和扫帚。我尝试安装ggepi库。但是它不适用于R版本3.6.1。对于以下示例,如何在x = 1处添加垂直中心线?

  d=data.frame(drink=c("coffee","tea","water"), mean=c(3,6,2), lower=c(2.6,5.6,1.8), 
  upper=c(3.5,6.3,2.8))
  ggplot() + 
  geom_errorbarh(data=d, mapping=aes(y=drink, x=upper, xmin=upper, xmax=lower), height=0.2, size=1, 
  color="blue") + 
  geom_point(data=d, mapping=aes(y=drink, x=mean), size=4, shape=21, fill="white")

1 个答案:

答案 0 :(得分:1)

尝试添加geom_vline(xintercept = 1)

ggplot() + 
  geom_errorbarh(data=d, mapping=aes(y=drink, x=upper, xmin=upper, xmax=lower), height=0.2, size=1, 
                 color="blue") + 
  geom_point(data=d, mapping=aes(y=drink, x=mean), size=4, shape=21, fill="white") +
  geom_vline(xintercept = 1)