> On May 14, 2017, at 8:43 AM, Ranjan Maitra <mai...@email.com> wrote: > > Thanks, Duncan! > > This works for the particular case and is, to my mind, a great solution! > > However, I was wondering: is it possible to use these double dots with > another character, such as omega? > > I apologize for changing the question somewhat, but I did not realize earlier > that there were separate codes for putting double dots over different letters > and I thought that figuring out the simpler question would be enough for me > to figure out the next step.
I think you should be looking for a LaTeX solution. There is a tikzDevice-package. This says you can assemble symbols with backspaces: https://www.stat.berkeley.edu/~partha/symbols.pdf For instance, LATEX defines \hbar (“~”) as a “¯” character (\mathchar’26) followed by a backspace of 9 math units (\mkern-9mu), followed by the letter “h”: The second example in ?tikz, which could be a starting point for completing your task fails on my Mac by only displaying the names of the glyphs but not the glyphs themselves in the plot, but it might have a better chance of succeeding on a Linux box. Best; David. > > Thanks again! > > Best wishes, > Ranjan > > > > On Sun, 14 May 2017 23:57:50 +1000 Duncan Mackay <dulca...@bigpond.com> wrote: > >> Hi >> >> I just had to do something similar in windows with \"{u}. Try Unicode symbol >> - see ?plotmath >> >> ggplot(data, aes(x=X)) + geom_line(aes(y = Z), size=0.43) + >> xlab(expression(atop(top,bold(Age~"\u00e4")))) >> >> Regards >> >> Duncan >> >> Duncan Mackay >> Department of Agronomy and Soil Science >> University of New England >> Armidale NSW 2351 >> Email: home: mac...@northnet.com.au >> >> -----Original Message----- >> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Ranjan >> Maitra >> Sent: Saturday, 13 May 2017 22:48 >> To: r-h...@stat.math.ethz.ch >> Subject: Re: [R] display double dot over character in plotmath? >> >> On Fri, 12 May 2017 23:39:14 -0700 Daniel Nordlund <djnordl...@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, >> Ranjan >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > > -- > Important Notice: This mailbox is ignored: e-mails are set to be deleted on > receipt. Please respond to the mailing list if appropriate. For those needing > to send personal or professional e-mail, please use appropriate addresses. > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
