Dear List, I am trying to label a plot with the symbol +/- sigma. Using something like - expression (2*sigma) gives me the symbol 2ó. However, adding +/- to it beats me. The code I am using is: plot(x,y,type="l",main=" expression(paste("±", plain(2*ó)),sep=""). Any suggestion will be appreciated. Best Ogbos [[alternative HTML version deleted]]
Hi, You may try something like: plot(rnorm(10), rnorm(10), main=expression("" %+-% 2*sigma)) HTH, Yves Le 27/07/2011 14:57, ogbos okike a écrit :> Dear List, > I am trying to label a plot with the symbol +/- sigma. Using something like > - expression (2*sigma) gives me the symbol 2ó. However, adding +/- to it > beats me. > The code I am using is: plot(x,y,type="l",main=" expression(paste("±", > plain(2*ó)),sep=""). > Any suggestion will be appreciated. > Best > Ogbos > > [[alternative HTML version deleted]] > > > > ______________________________________________ > R-help@r-project.org mailing list > 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.[[alternative HTML version deleted]]
On Jul 27, 2011, at 8:57 AM, ogbos okike wrote:> Dear List, > I am trying to label a plot with the symbol +/- sigma. Using > something like > - expression (2*sigma) gives me the symbol 2?. However, adding +/- > to it > beats me. > The code I am using is: plot(x,y,type="l",main=" > expression(paste("?", > plain(2*?)),sep=""). > Any suggestion will be appreciated.1) If you are getting errors then you should post them. 2) There is no `sep =` argument in plotmath's paste function. 3) It is an error to put double quotes before the `expression` function call. 4) once those errors are corrected the "?" is properly rendered in the title.> Best > Ogbos > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > 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, MD West Hartford, CT