[R] display double dot over character in plotmath?
maitra at email.com
Sat May 13 14:47:45 CEST 2017
On Fri, 12 May 2017 23:39:14 -0700 Daniel Nordlund <djnordlund at gmail.com> wrote:
> On 5/12/17 4:55 PM, Ranjan Maitra wrote:
> > Hi,
> > Is it possible to display double dot (umlaut) over a character such as would be possible using \ddot x in LaTeX? I can do this using tikzDevice but I wanted something simpler to point to.
> > Here is an example of what I would like to do, but it is not quite there:
> > require(ggplot2)
> > data<-as.data.frame(c("a","b","c","a","b","c"))
> > colnames(data)<-"Y"
> > data$X<-c(1:6)
> > data$Z<-c(1,2,3,1,2,3)
> > ggplot(data, aes(x=X)) + geom_line(aes(y = Z), size=0.43) + xlab(expression(atop(top,bold(Age~"à"))))
> > I would like to put in a double dot over the "a" in the x-axis instead of "`".
> > Many thanks for any suggestions and best wishes,
> > Ranjan
> You haven't told what OS you are using, but with Windows OS, you can get
> the 'ä' by making sure the NUMLOCK key is on, hold down the alt key and
> press 0228 on the numeric keypad.
I am sorry, I use a linux operating system. I use Fedora 25 but the student I wanted to show this uses Ubuntu, though I don't know if the distribution matters.
Thanks again for your help, and best wishes,
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