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我有一個相對於this one有關如何在ggplot boxplot中自定義凹槽的問題。這個問題的作者回復自己並給了ggplot_build()暗示,但我很遺憾不能使用它。如何使用ggplot_build()手動設置ggplot box plot中的凹槽?
所以我的問題是:一旦你手動設置缺口限額與ggplot_build(),怎麼一個重複使用它來定製自己的箱線圖?
這裏是我的數據
vib = c(3.94,-0.61,0.03,0.46)
pla = c(0.784444444, 1.11,-1.98,-1.39)
df = data.frame(value = c(vib, pla),
group = c(rep("vibration", times = 4), rep("placebo", times = 4)))
p <- ggplot(df, aes(x = group, y = value)) + geom_boxplot(notch=TRUE)
gg <- ggplot_build(p)
gg$data[[1]]$notchlower[1]<-sort(vib)[qbinom(c(.25, .975), length(vib), .5)][1]
gg$data[[1]]$notchlower[2]<-sort(pla)[qbinom(c(.25, .975), length(pla), .5)][1]
gg$data[[1]]$notchupper[1]<-sort(vib)[qbinom(c(.25, .975), length(vib), .5)][2]
gg$data[[1]]$notchupper[2]<-sort(pla)[qbinom(c(.25, .975), length(pla), .5)][2]
gg$data[[1]]
ggplot(gg$data[[1]], aes(x = x)) +
geom_boxplot(aes(ymin = ymin, lower = lower, middle = middle, upper = upper, ymax = ymax),
stat = "identity",
notch = TRUE)
並將得到警告信息
Error in ifelse(notch, data$notchlower, NA) : replacement has length zero
In addition: Warning message:
In rep(yes, length.out = length(ans)) :
'x' is NULL so the result will be NULL
我在做什麼錯? 非常感謝
@beetroot哪裏是我的代碼的問題? – Epifunky