[R] switch of cex adjustment with mfrow?

[S Ellison]

> use
> 
> par(mfrow=c(2,2), cex = 1)

This does work as written. But when I first checked single-call setting, an  mfrow change to cex in the same call superseded cex=1; hence my suggestion to use separate calls to par().
Further checking confirms that the result of a call to par is dependent on argument specification order in the call:

par(mfrow=c(2,2), cex = 1)
par("cex")
	# 1

par(cex=1, mfrow=c(2,2))
par("cex")
	# 0.83

This obviously isn't a problem, though as an aside I didn't immediately find any comment on the effect of argument order in ?par. It just means you have to be careful exactly what you specify.
It may also mean that for future-proofing against possible changes in par execution order, you might want to use separate calls anyway.

Steve Ellison


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