我有这些数据:
set.seed(1)
df <- data.frame(y=rnorm(12),name=factor(rep(c("a","a","b","b","c","c"),2),levels=c("a","b","c")),side=factor(rep(1:2,6),levels=1:2),group=factor(c(rep("x",6),rep("y",6)),levels=c("x","y")),stringsAsFactors=F)
df$upper <- df$y+0.1*df$y
df$lower <- df$y-0.1*df$y
df$max <- df$y+0.25*df$y
df$min <- df$y-0.25*df$y
我希望ggplot
- geom_boxplot
他们有两个方面,最上面是df$group == x
,下方是df$group == y
,其中每个方面df$side == 1
出现在df$side == 2
的左侧。我还要为df$group == x
darkgray
和df$group == y
darkred
着色。
以下是我尝试的内容:
library(ggplot2)
p <- ggplot(data=df,aes(name,color=group))+facet_wrap(~group,ncol=1)+scale_color_manual(values=c("darkgray","darkred"),labels=levels(df$group),name="group")+scale_fill_manual(values=c("darkgray","darkred"),labels=levels(df$group),name="group")
p <- p+geom_boxplot(aes(fill=group,lower=lower,upper=upper,middle=y,ymin=min,ymax=max),position=position_dodge(width=0),alpha=0.5,stat="identity")+theme(text=element_text(size=10))
p <- p+guides(fill=guide_legend(reverse=FALSE),colour=guide_legend(reverse=FALSE))
除了df$side == 1
左侧没有df$side == 2
外,它已接近。
知道怎么做吗?
答案 0 :(得分:1)
我认为这可能是你所追求的,它使用interaction
根据其参数级别的所有组合创建一个因子(你也可以使用side:name
):
ggplot(df, aes(x=name, group=interaction(side, name),
col=group, fill=group)) +
facet_wrap(~group) +
geom_boxplot(aes(lower = lower, upper = upper,
middle = y, ymin = min, ymax = max),
position = position_dodge(width = 0.5),
alpha = 0.5, stat = "identity")
可能更清楚的是使用颜色来显示哪一面是哪一面,因为正面已标注该组:
ggplot(df, aes(x=name, group=interaction(side, name),
col=side, fill=side)) +
facet_wrap(~group) +
geom_boxplot(aes(lower = lower, upper = upper,
middle = y, ymin = min, ymax = max),
position = position_dodge(width = 0.5),
alpha = 0.5, stat = "identity")