带有因子的多列的ggplot boxplot

2 回答

• 9

  以下工作“在同一图中绘制多个数字列的箱线图，并按箱子图分组”：

  mm = melt(df, id=c('id','factor.col'))
  ggplot(mm)+geom_boxplot(aes(x=paste(variable,factor.col,sep="_"), y=value))
  

  

  数据：

  > df
     id          var1       var2       var3 factor.col
  1   1  0.0562941632  1.3055892 -1.7553986          c
  2   2  0.3187487914 -0.6434729  0.7582403          a
  3   3 -1.0120881740  0.3898366  0.4790115          c
  4   4 -0.7576871261  0.9474247  0.2180341          b
  5   5 -0.2895981608  0.2388043 -0.4407693          a
  6   6  0.0005306311  0.9494667 -0.2604795          c
  7   7  0.2022893934 -0.3095420 -1.9483369          c
  8   8 -0.8179580833 -0.7891642  0.7662824          b
  9   9 -0.7553554525  0.2734337 -0.7145471          b
  10 10  0.4206429078 -0.6171774  0.6274320          c
  >
  

  以下也可以使用：

  ggplot(mm)+geom_boxplot(aes(x=variable, y=value))+facet_grid(.~factor.col)
  

  

  回复于 2024-04-29T00:29:45+08:00
• 1

  当您使用 ggplot2 时，您的数据布局需要与基本图形的布局有所不同

  #Your sample data...
  df= data.frame(id = 1:10,
             var1 = rnorm(10),
             var2 = rnorm(10),
             var3= rnorm(10),
             factor.col= LETTERS[1:10]
  )
  # Use the reshape2 package to merge the columns by id and factor.col
  library(reshape2)
  df_long <- melt(df, id=c("id","factor.col"))
  # And now plot the boxplots
  library(ggplot2)
  ggplot(df_long,aes(x=factor.col,y=value)) + geom_boxplot()
  

  回复于 2024-04-29T00:29:45+08:00