Some of the help page examples use the form:
opar <- par(<something>)
.....plotting activities...
par(opar)
This seems to "work" well, yet I have read in some places that it is
not the preferred method to keep you parameters from getting
corrupted. What is the preferred method?
A worked example from a recent posting with minor additions:
opar <- par(mar=c(3,5,0,5))
layout(rbind(c(4,1,1,5), c(2,2,3,3)), widths=c(1,1,1,1),
heights=c(.75,2.25))
barplot(0,0, axes=FALSE)
legend(x=0.5, y=0, legend=c("Example 1", "Example 2"),
pch=c(1,2), cex=1.5, xjust=1, yjust=0.5, bty="n")
plot(1:10,1:10, pch=1)
plot(1:20,1:20, pch=2)
par(opar)
--
David Winsemius, MD
West Hartford, CT
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