在R中创建分组条形图

Question

我在R中有一个数据框，看起来像这样：

 Requirements   Documentation   Development  Delivery

 After          After           During       During
 Before         After           Before       After
 After          Before          Before       During
 During         During          After        Before
...

我需要创建一个直方图，其外观必须类似于下图，但是我无法创建正确的数据集

任何帮助将不胜感激。

Answer 1

请检查以下内容：https://stackoverflow.com/help/minimal-reproducible-example

  df <- data.frame(
      Requirement = c("After", "Before", "After", "During"),
      Documentation = c("After", "After", "Before", "During"),
      Development = c("During", "Before", "Before", "After"),
      Delivery = c("During", "After", "During", "Before")
    )

您首先必须以长格式重塑数据框

library(tidyr)
newdf <- gather(df)


p <- ggplot(data=newdf, aes(x=key, y=value, fill = value)) +
  geom_bar(stat="identity", color="black", position=position_dodge())+
  theme_minimal()
p