[Rd] abline and log plots (PR#1243)

[stephen@cogsci.ed.ac.uk]

Full_Name: Stephen Eglen
Version: 1.4
OS: Redhat Linux 7.1
Submission from: (NULL) (128.252.204.36)


abline() produces a spurious line in addition to the correct line, at least with

the X11 driver.  The postscript file generated also has nan values in it, which
causes an error under ghostscript.

xs <- c(0, 150, 300)
ys <- c(75, 40, 23)
par(mfrow=c(1,2))
plot(xs,ys, log="")
abline(70, -0.25, -.1, untf=F)
plot(xs,ys, log="y")
abline(70, -0.3, -.1, untf=T)
dev.copy2eps(file="abline.ps")


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