R 中 ggplot 的堆积条形图中的中心数据标签

Question

我有这样的样本数据：

name \<- rep(c("ba", "EW", "RW", "Se", "St", "US", "VN"), 2)

value \<-  c(0, 6323, 7397, 13945, 11801, 55255, 22519, 4124, 13540, 9616, 57724, 6646, 22021, 8841)

type \<- c(rep("g", 7), rep("o", 7))

test \<- data.frame(name, value, type)

并使用代码创建了一个绘图：

ggplot(test, aes(x=name, y=value, fill=type)) + 
  geom_bar(position = position_stack(reverse = TRUE), stat='identity') + 
  theme(plot.title = element_text(hjust = 0.5)) +
  scale_fill_manual(values = c("#0099f9", "#69c6ff")) + 
  geom_text(aes(label = value), position = position_stack(vjust = 0.5), colour = "black", size = 3) + 
  guides(fill = guide_legend(title = "", reverse = TRUE))

数据标签不在每个块中居中： 情节

我使用了在ggplot2中的堆积条形图上显示数据值和(R) ggplot2标签未正确居中中的解决方案，但是

position = position_stack(vjust = 0.5) 

在 geom_text 中没有帮助

为什么会这样，我还能做什么？

Answer 1

您也必须

reverse

标签的堆栈顺序，即使用

position_stack(vjust = 0.5, reverse = TRUE)

作为

geom_text

：

library(ggplot2)

ggplot(test, aes(x = name, y = value, fill = type)) +
  geom_bar(position = position_stack(reverse = TRUE), stat = "identity") +
  theme(plot.title = element_text(hjust = 0.5)) +
  scale_fill_manual(values = c("#0099f9", "#69c6ff")) +
  geom_text(aes(label = value),
    position = position_stack(vjust = 0.5, reverse = TRUE),
    colour = "black", size = 3
  ) +
  guides(fill = guide_legend(title = "", reverse = TRUE))