R:在堆栈栏上显示字符或类别

Question

我正在尝试将类别和百分比添加到堆栈栏中的每个级别，例如:

Category  <- c(rep(c("A", "B", "C", "D"), times = 4))
Data      <- data.frame( Category)

p= ggplot(Data,aes(x=factor(""),fill=factor(Category)))+
  geom_bar(position="fill")+
  geom_text(aes(label=scales::percent(..count../sum(..count..))),   stat='count',position=position_fill(vjust=0.5))

这会产生这个图表:

但是我尝试使用此命令获取此图表，但失败了

预期图表

p=ggplot(Data,aes(x=factor(""),fill=factor(Category)))+
  geom_bar(position="fill")+
  geom_text(aes(label=scales::percent(..count../sum(..count..))), stat='count',position=position_fill(vjust=0.5))

  p + geom_text(data=Data, aes(x=factor(""),label = Category),  position=position_fill(vjust=0.5))

Answer 1

你已经很好地获得了所需的文本，我想如果你添加 stat = "count" 并稍微调整 vjust 你会得到什么你想要的。

library(ggplot2)
Category  <- c(rep(c("A", "B", "C", "D"), times = 4))
Data      <- data.frame( Category)

ggplot(Data,aes(x=factor(""),fill=factor(Category)))+
  geom_bar(position="fill")+
  geom_text(aes(label=scales::percent(..count../sum(..count..))),   
            stat='count',position=position_fill(vjust=0.5)) +
  geom_text(aes(label = Category), fontface = "bold",
            stat = "count", position = position_fill(vjust = 0.25))

^{由 reprex package 于 2021 年 1 月 9 日创建(v0.3.0)}