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我還有一個關於geom_boxplot的問題。 是否可以將geom_jitter繪製爲異常值?像這樣我可以有另一種如何不繪製geom_jitter的所有點?
aa <- c(rep("A1",5), rep("A2",3), rep("A3",4), rep("A4",9), rep("A5",3))
aa <- as.factor(aa)
per <- runif(length(aa), min=0, max=100)
per <- trunc(per)
z <- data.frame(x=aa,y=per)
z$ch <- NA
z[z$x %in% c("A1","A2"), "ch"] <- "string1"
z[z$x %in% c("A3"), "ch"] <- "string2"
z[z$x %in% c("A4", "A5"), "ch"] <- "string3"
z$ch <- as.factor(z$ch)
z$x = with(z, factor(x, rev(levels(x))))
p <- ggplot(z, aes(x, y, fill = ch)) +
geom_boxplot(size = 0.2, position = "dodge", outlier.colour = "red", outlier.shape = 16, outlier.size = 2) +
geom_jitter(size=1,position = "dodge") +
opts(legend.position = "right") +
scale_colour_hue("variable") +
coord_flip()
print(p)
我明白這個主意,但我沒有成功意識到這一點。離羣點數爲字符串1或2或3,而不是每行。所以我不明白我怎樣才能將is.outlier列添加到我的數據框中。另外,is.outlier是對象類modlist ... – Tali 2011-12-15 07:07:57