I tried
text(.25*1500, .14, 'a', col='blue')
text(.196*1500,.14, 'b', col='blue')
and got improved spacing.
Another option is to take control of ylim, and extend the bottom of ylim a
bit lower than the automatically defined value.
Rich
On Thu, Jul 25, 2013 at 6:54 PM, Frank Harrell <f.harr...@vanderbilt.edu>wrote:
> I can't get the points and "a" and "b" to render correctly (they are
> squeezed into the axis) unless I make the height of the figure waste a lot
> of space. I'd appreciate any ideas. The code is below. Thanks!
>
> png('/tmp/z.png', width=480, height=100)
> par(mar=c(3,.5,1,.5))
> plot.new()
> par(usr=c(-10, 410, -.04, 1.04))
> par(mgp=c(1.5,.5,0))
> axis(1, at=seq(0, 400, by=50))
> axis(1, at=seq(0, 400, by=25), tcl=-.25, labels=FALSE)
> title(xlab='Mean Count')
> points(x, rep(-.02, length(x)))
> lines(rep(.25*1500, 2), c(-.04, .04), col='blue')
> lines(rep(.196*1500, 2), c(-.04, .04), col='blue')
> text(.25*1500, .07, 'a', col='blue')
> text(.196*1500,.07, 'b', col='blue')
> dev.off()
>
> It works if I use height=350.
>
> Frank
>
>
> > version
> _
> platform x86_64-pc-linux-gnu
> arch x86_64
> os linux-gnu
> system x86_64, linux-gnu
> status
> major 3
> minor 0.1
> year 2013
> month 05
> day 16
> svn rev 62743
> language R
> version.string R version 3.0.1 (2013-05-16)
> nickname Good Sport
> >
> --
> Frank E Harrell Jr Professor and Chairman School of Medicine
> Department of Biostatistics Vanderbilt University
>
> ______________________________**________________
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>
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