ggplot - 摘要统计信息的boxplot宽度

Question

我正在直接从摘要统计中制作箱图，并且似乎没有考虑宽度参数。在这种情况下，如何更改框的宽度？如果我像往常一样指定宽度，我会得到一个“未知参数被忽略”，而且我无法弄清楚如何（或者如果）我可以使用N列来使用varwidth。

df <- structure(list(Area = c("a", "b", "c"), Q5 = c(8.545403328, 23.436503552, 
28.134954848), Q10 = c(10.197717376, 23.558146304, 31.434514496
), Q25 = c(15.15465952, 23.92307456, 41.33319344), Q50 = c(63.55833792, 
24.53128832, 58.74331232), Q75 = c(88.69784, 31.6778, 71.69319696
), Q90 = c(102.504292352, 35.965707008, 73.563454272), Q95 = c(107.106443136, 
37.395009344, 74.186873376), N = c(5L, 3L, 4L)), .Names = c("Area", 
"Q5", "Q10", "Q25", "Q50", "Q75", "Q90", "Q95", "N"), row.names = c(NA, 
-3L), class = c("tbl_df", "tbl", "data.frame"))

情节：

library(ggplot2)

ggplot(df) + 
geom_boxplot(aes(x = Area, lower = Q25, upper = Q75, middle = Q50, 
    ymin = Q10, ymax = Q90), stat = "identity", size = 0.1)