Daniel Siddle wrote:
> I am very new to R so forgive me if this seems basic but I have done
> extensive searching and failed to come up with the answer for myself.
>
> I am trying to label a boxplot I have created with the values for the median,
> upper and lower quartiles and max and min values. I have been unable to do
> this or find anything on the net to say how it might be done. Is this
> possible and if so how? Regards,
Here is another idea:
fn <- boxplot(ToothGrowth$len, plot=FALSE)$stats
par(mar=c(4,6,4,2))
boxplot(ToothGrowth$len, ylab="Length", at=.80)
text(1.15, fn[1], paste("Minimum Value =", fn[1]), adj=0, cex=.7)
text(1.15, fn[2], paste("Lower Quartile =", fn[2]), adj=0, cex=.7)
text(1.15, fn[3], paste("Median =", fn[3]), adj=0, cex=.7)
text(1.15, fn[4], paste("Upper Quartile =", fn[4]), adj=0, cex=.7)
text(1.15, fn[5], paste("Maximum Value =", fn[5]), adj=0, cex=.7)
arrows(1.14, fn[1], 1.02, fn[1])
arrows(1.14, fn[2], 1.02, fn[2])
arrows(1.14, fn[3], 1.02, fn[3])
arrows(1.14, fn[4], 1.02, fn[4])
arrows(1.14, fn[5], 1.02, fn[5])
title("Annotated Boxplot of Tooth Growth")
> Daniel Siddle
>
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and provide commented, minimal, self-contained, reproducible code.
