I just changed the 'at' argument and added an 'xlim' option.
boxplot(len ~ dose, data = ToothGrowth,
boxwex = 0.25, at = 1:3,
subset = which(supp == "VC"), col = "yellow",
main = "Guinea Pigs' Tooth Growth",
xlab = "Vitamin C dose mg",
ylab = "tooth length", xlim=c(1, 6), ylim=c(0, 35), yaxs="i")
abline(v=3.5)
boxplot(len ~ dose, data = ToothGrowth, add = TRUE,
boxwex = 0.25, at = 1:3 + 3,
subset = which(supp == "OJ"), col = "orange")
legend("bottomright", c("Ascorbic acid", "Orange juice"),
fill = c("yellow", "orange"))
Regards, Adai
cathelf wrote:
Thank you for your guys reply for my previous question. But I got one more
question about the boxplot. With the code in the R-help:
boxplot(len ~ dose, data = ToothGrowth,
boxwex = 0.25, at = 1:3 - 0.2,
subset = supp == "VC", col = "yellow",
main = "Guinea Pigs' Tooth Growth",
xlab = "Vitamin C dose mg",
ylab = "tooth length", ylim = c(0, 35), yaxs = "i")
boxplot(len ~ dose, data = ToothGrowth, add = TRUE,
boxwex = 0.25, at = 1:3 + 0.2,
subset = supp == "OJ", col = "orange")
legend(2, 9, c("Ascorbic acid", "Orange juice"),
fill = c("yellow", "orange"))
I got 6 boxplots, which is ordered as "0.5, 0.5, 1, 1, 2, 2"
How can I reorder the 6 boxplots as "0.5, 1, 2, 0.5, 1, 2"?
Thank you very much!
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