如何使用R ggplot stat_summary绘制中位数和四分位数? [英] How to use R ggplot stat_summary to plot median and quartiles?

问题描述

如何将此统计摘要图中的上下限更改为25％四分位数和75％四分位数?

how to change the lower and upper point in this stat summary plot to 25% quartile and 75% quartile?

ggplot(data = diamonds) + stat_summary(
  mapping = aes(x = cut, y = depth),
  fun.ymin = min,
  fun.ymax = max,
  fun.y = median
)

推荐答案

ggplot(data = diamonds) + stat_summary(
  mapping = aes(x = cut, y = depth),
  fun.min = function(z) { quantile(z,0.25) },
  fun.max = function(z) { quantile(z,0.75) },
  fun = median)

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