在ggplot2中,我希望将胡须扩展到数据集的最小值和最大值,而不是显示异常值。我找到了隐藏异常值的方法,但是我无法将胡须延伸到每组的最小值和最大值。
a <- data.frame(group = "a", value = rnorm(10))
b <- data.frame(group = "b", value = rnorm(100))
c <- data.frame(group = "c", value = rnorm(1000))
data <- rbind(a, b, c)
ggplot(data, aes(x=group, y=value)) +
stat_boxplot(geom ='errorbar') +
geom_boxplot() #geom_boxplot(outlier.shape = NA)
问:设置ggplot2箱图的正确方法是什么,以便胡须延伸到最小值和最大值?
答案 0 :(得分:2)
根据LJW的评论,我认为这就是你想要的:
a <- data.frame(group = "a", value = rnorm(10))
b <- data.frame(group = "b", value = rnorm(100))
c <- data.frame(group = "c", value = rnorm(1000))
data <- rbind(a, b, c)
o <- function(x) {
subset(x, x == max(x) | x == min(x))
}
f <- function(x) {
r <- quantile(x, probs = c(0.00, 0.25, 0.5, 0.75, 1))
names(r) <- c("ymin", "lower", "middle", "upper", "ymax")
r
}
ggplot(data, aes(x=group, y=value)) +
stat_summary(fun.data=f, geom="boxplot") +
stat_summary(fun.y = o, geom="point") +
stat_boxplot(geom='errorbar',coef=10) #just give an arbitrarily big number here
<强>更新强> 您可以在stat_boxplot函数中添加带有coef参数的胡须: