Increase size of boxplot names in R

Question

I'm having issues in locating an answer for this, as I don't want to increase the size of the x-axis label, but the names attribute of my boxplot.

I am generating a 1x3 subplot, with 3 boxes shown within each boxplot.

data1 = c(d1, d3, d3)
data2 = c(e1, e2, e3)
data3 = c(f1, f2, f3)
lbls = c("Label 1", "Label 2", "Label 3")
par(mfrow=c(1,3))
boxplot(data1, names=lbls, ylab="Components", main="First Plot", ylim=c(0,1500))
boxplot(data2, names=lbls, ylab="Components", main="Second Plot", ylim=c(0,1500))
boxplot(data3, names=lbls, ylab="Components", main="Third Plot", ylim=c(0,1500))

I have tried playing around with things like par(cex.lab=1.5), boxplot(..., label.cex=1.5), and so on, but nothing actually increases the size of the names field, only the label axes.

score 51 · Accepted Answer · edited Jul 06 '17 at 08:52

51

Using the par() command with the appropriate command will allow you to resize it.

Try using one of the two following commands with varying sizes and it should work out for you.

par(cex.lab=1.5) # is for y-axis

par(cex.axis=1.5) # is for x-axis

edited Jul 06 '17 at 08:52

Marek Židek

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answered May 07 '12 at 20:05

Swiftfoottim

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Just adding in case someone else finds this question from the same place I did. I came here to find the `cex.names` argument, which corresponds to the `names.arg` labels. – MichaelChirico Oct 27 '17 at 06:06
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Good answer. You can also use `par(cex.main=#)` to resize the main title. – Finger Picking Good Oct 28 '19 at 18:22

Increase size of boxplot names in R

1 Answers1