Question

I am probably overlooking something obvious but then maybe someone else will too.

I’m using a lot of ticks on the x-axis in an R plot.
I have shrunk the margin text to make room (using cex.axis) but I want more and it would be better if I could make the text vertical.

Answer 1

These commands will make the x-axis text vertical:

##The numbers next to the tick marks
par(las=3)
plot(x=1:10, y=1:10, xlab="")

##The x-axis label
mtext("sfdf", 1, las=3, adj=3)