在ggplot2中跨越多组条形线

时间:2017-04-10 09:36:21

标签: r ggplot2

我有一个小数据框,我想建立一个条形图,其中的线条显示了不同组的平均水平。

数据帧:

cpcost = c("Coll.Punishment","Coll.Punishment", "Ind.Punishment", 
           "Ind.Punishment")
color = c(0,1,0,1)
mysum = c(0.3408240, 0.2935982, 0.3460490, 0.1267057)
genlevel = c(0.3111111,0.3111111, 0.2181818, 0.2181818)
temp = as.data.frame(cbind(cpcost,color,mysum,genlevel))

所以结果如下:

enter image description here

问题是,现在我正在以一种非常丑陋的方式进行(见下文)。 我基本上首先添加水平误差条。但是因为每个条形的误差条之间有一个小空间:

enter image description here

我还绘制一条水平线来填充误差条之间的这个小空间。 (如果我绘制唯一的水平条,它将从条形图的中间开始。)

enter image description here

我相信有更优雅的方式来达到相同的结果。 我该怎么办?

谢谢!

    ggplot(temp, aes(group=cpcost),
           y = genlevel ) + 
      geom_bar(stat = "identity",aes(x = factor(color),
                                     y = mysum,
                                     group=cpcost,
                                     fill = factor(color))) +
       geom_errorbar(aes(x=factor(color),
                          y=genlevel,
                          ymin=genlevel,
                          ymax=genlevel,
                         group=cpcost
                          )) +
      geom_line( aes(x=factor(color), y=genlevel,group=cpcost)) +
      labs(x = "Round", y = "Share of Emptying") + 
      scale_fill_discrete(name='Crime',                                                          
 labels=c("No", "Yes" )) +
      ggtitle('Whistleblowing')+
      facet_grid(~cpcost)

1 个答案:

答案 0 :(得分:1)

这会给你一个稍微不同的结果,但我希望它足以满足你的需要。它比较干净,使用内置的geom_hline

library(ggplot2)

df <- data.frame(cpcost = c("Coll.Punishment", "Coll.Punishment", "Ind.Punishment", "Ind.Punishment"),
                color = c(0,1,0,1),
                mysum = c(0.3408240, 0.2935982, 0.3460490, 0.1267057),
                genlevel = c(0.3111111,0.3111111, 0.2181818, 0.2181818))

ggplot(df) +
    geom_col(aes(factor(color), mysum, fill = factor(color))) +
    geom_hline(aes(yintercept = genlevel)) +
    scale_fill_discrete(name='Crime', labels=c("No", "Yes" )) +        
    facet_wrap( ~ cpcost) +
    labs(x = "Round", y = "Share of Emptying") +
    ggtitle('Whistleblowing')