[R] expression() - Superscript in y-axis, keeping line break in string

[Marc Schwartz (via MN)]

Actually Gabor, using your solution with 'atop', which I had not
considered, it will work with base graphics:

 par(oma = c(0, 0, 2, 0), mar = c(5, 6, 0.25, 2), lheight = 1)

 plot(1:10, ylab = expression(atop(" "^14*C*"-glyphosate line1",
                                   line2)))

HTH,

Marc

On Fri, 2006-08-04 at 12:09 -0400, Gabor Grothendieck wrote:
> Sorry, you wanted a ylab=, not a main=.  Try using xyplot in lattice:
> 
> library(lattice)
> xyplot(1~1, ylab = expression(atop(phantom(0)^14*C*"-glyphosate line",
> "line2")))
> 
> 
> On 8/4/06, Gabor Grothendieck <ggrothendieck at gmail.com> wrote:
> > Use atop:
> >
> >   plot(1, main = expression(atop(" "^14*C*"-glyphosate line", "line2")))
> >
> > On 8/4/06, Andrew Kniss <akniss at uwyo.edu> wrote:
> > > I've tried several different ways to accomplish this, but as yet to no
> > > avail.  My y-axis for a plot has a rather long label, and thus I have
> > > been using "/n" to break it into two lines.  However, to make it
> > > technically correct for publication, I also need to use superscript in
> > > the label.  For example:
> > >
> > >     par(oma=c(0,0,2,0),mar=c(5,6,0.25,2),lheight=1)
> > >     plot(1:10,
> > >          ylab="14C-glyphosate line1\n line2")
> > >
> > > will provide the text in two lines as I would like it.  However, I am
> > > trying to keep those same line breaks when using expression() to get my
> > > superscript number.  This will not work, as it aligns the "14C" section
> > > with the bottom line of the expression making little sense to the
> > > reader.
> > >
> > >     par(oma=c(0,0,2,0),mar=c(5,6,0.25,2),lheight=1)
> > >     plot(1:10,
> > >          ylab=expression(" "^14*C*"-glyphosate line1\n line2"))
> > >
> > > Is there a way to align the "14C" portion of the expression with the top
> > > line of the string rather than the bottom line?  Any suggestions are
> > > greatly appreciated.
> > > Andrew
> > >