R - 如何在boxplot中显示平均值，中位数，标准差，分位数

Question

有没有一种方法可以通过使用R来显示boxplot中的“​​五个值”？

p0.3 = dbinom(0:60, 60, 0.3) 
p0.5 = dbinom(0:60, 60, 0.5) 
p0.8 = dbinom(0:60, 60, 0.8) 
boxplot(p0.3,p0.5,p0.8, names=c("0.3","0.5","0.8"),col=c("red","yellow","blue"),main = "Boxplot of Probability Distribution ", ylab = "Distribution Density", xlab = "Probability") 

Answer 1

我不清楚如果你想绘制符号或值本身。它的第一个，你可以添加一些东西给你绘制这样的：

abline(h=mean(p0.3), col ="red"); 
points(sd(p0.3), pch=18, col ="red") 

如果是第二个，你可以通过自己的计算这些统计数据，然后添加值文本：

p0.3 = dbinom(0:60, 60, 0.3) 
p0.5 = dbinom(0:60, 60, 0.5) 
p0.8 = dbinom(0:60, 60, 0.8) 
boxplot(p0.3,p0.5,p0.8, names=c("0.3","0.5","0.8"),col=c("red","yellow","blue"),main = "Boxplot of Probability Distribution ", ylab = "Distribution Density", xlab = "Probability") 

means <- mean(p0.3, na.rm = TRUE) 

text(x=means, labels = means, y=0.01) # you will need to adjust y