Re: [R] asterisk in subscript
On Fri, 28 Jan 2011, Andrew Collier wrote: hi, i am trying to label a plot axis with the equivalent of the latex $n_*$. i initially tried expression(paste(italic(n)[*])) but this made the * absolutely tiny and centred about midway wrt the n. then expression(paste(italic(n)[textstyle(*)])) made the * about the right size but now it looks more like a superscript than a subscript. does anyone have an idea of how to get the * to the right subscript position (ie. somewhere near the baseline of the n)? thanks! I think these *are* correct: remember that an asterisk is a superscript. However, what you see depends on the graphics device and font you used, and you have not told us (pace the posting guide). If your OS and device support Unicode, try \u2217: expression(paste(italic(n)[\u2217])) looks about right to me (X11() on Linux). best regards, andrew. -- Andrew B. Collier Physicist Waves and Space Plasmas Group Hermanus Magnetic Observatory Honorary Senior Lecturer tel: +27 31 2601157 Space Physics Research Institute fax: +27 31 2607795 University of KwaZulu-Natal, Durban, South Africagsm: +27 83 3813655 -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ 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.
Re: [R] asterisk in subscript
thanks for the rapid response. yes, in x11 your suggestion works perfectly. i have never thought of the asterisk as being a superscript... to me it has always been the mulitply sign which is centred. thanks for the education! however, my plot is being sent to postscript, which i guess does not support unicode because i get a whole flurry of warnings and the text on the plot is not correct. Warning messages: 1: In title(...) : font metrics unknown for Unicode character U+2217 2: In title(...) : font metrics unknown for Unicode character U+2217 3: In title(...) : font metrics unknown for Unicode character U+2217 4: In title(...) : font metrics unknown for Unicode character U+2217 5: In title(...) : conversion failure on '∗' in 'mbcsToSbcs': dot substituted for e2 6: In title(...) : conversion failure on '∗' in 'mbcsToSbcs': dot substituted for 88 7: In title(...) : conversion failure on '∗' in 'mbcsToSbcs': dot substituted for 97 8: In title(...) : conversion failure on '∗' in 'mbcsToSbcs': dot substituted for e2 9: In title(...) : conversion failure on '∗' in 'mbcsToSbcs': dot substituted for 88 10: In title(...) : conversion failure on '∗' in 'mbcsToSbcs': dot substituted for 97 the plotting command is plot(NA, xlim = c(0,10), ylim = c(0, 20), ylab = expression(paste(symbol(\341), italic(n), symbol(\361))), xlab = expression(paste(italic(n)[\u2217]))) i am just using the plain vanilla font (no changes). it is being run on R version 2.11.1 (2010-05-31) under ubuntu. my locale is LC_CTYPE=en_ZA.utf8;LC_NUMERIC=C;LC_TIME=en_ZA.utf8;LC_COLLATE=en_ZA.utf8;LC_MONETARY=C;LC_MESSAGES=en_ZA.utf8;LC_PAPER=en_ZA.utf8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_ZA.utf8;LC_IDENTIFICATION=C -- Andrew B. Collier Physicist Waves and Space Plasmas Group Hermanus Magnetic Observatory Honorary Senior Lecturer tel: +27 31 2601157 Space Physics Research Institute fax: +27 31 2607795 University of KwaZulu-Natal, Durban, South Africagsm: +27 83 3813655 On Fri, 2011-01-28 at 09:48 +, Prof Brian Ripley wrote: On Fri, 28 Jan 2011, Andrew Collier wrote: hi, i am trying to label a plot axis with the equivalent of the latex $n_*$. i initially tried expression(paste(italic(n)[*])) but this made the * absolutely tiny and centred about midway wrt the n. then expression(paste(italic(n)[textstyle(*)])) made the * about the right size but now it looks more like a superscript than a subscript. does anyone have an idea of how to get the * to the right subscript position (ie. somewhere near the baseline of the n)? thanks! I think these *are* correct: remember that an asterisk is a superscript. However, what you see depends on the graphics device and font you used, and you have not told us (pace the posting guide). If your OS and device support Unicode, try \u2217: expression(paste(italic(n)[\u2217])) looks about right to me (X11() on Linux). best regards, andrew. -- Andrew B. Collier Physicist Waves and Space Plasmas Group Hermanus Magnetic Observatory Honorary Senior Lecturer tel: +27 31 2601157 Space Physics Research Institute fax: +27 31 2607795 University of KwaZulu-Natal, Durban, South Africagsm: +27 83 3813655 __ 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.
Re: [R] asterisk in subscript
On 28-Jan-11 10:24:23, Andrew Collier wrote: thanks for the rapid response. yes, in x11 your suggestion works perfectly. i have never thought of the asterisk as being a superscript... to me it has always been the mulitply sign which is centred. thanks for the education! however, my plot is being sent to postscript, which i guess does not support unicode because i get a whole flurry of warnings and the text on the plot is not correct. [snip] Indeed, PostScript does not support Unicode, though for the characters which it does support it would be possible to convert Unicode into appropriate PostScript references. However, PostScript does have a centred (non-superscript) asterisk. This is in the Symbol character set, and it is called asteriskmath, with octal code 052 (decimal 42). But I do now know how to instruct R to cause this to be printed! (Though I feel sure someone else does). Ted. E-Mail: (Ted Harding) ted.hard...@wlandres.net Fax-to-email: +44 (0)870 094 0861 Date: 28-Jan-11 Time: 10:43:39 -- XFMail -- __ 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.
Re: [R] asterisk in subscript
magic! this does the trick: expression(paste(italic(n)[symbol(\052)])) thanks for the hint, ted! -- Andrew B. Collier Physicist Waves and Space Plasmas Group Hermanus Magnetic Observatory Honorary Senior Lecturer tel: +27 31 2601157 Space Physics Research Institute fax: +27 31 2607795 University of KwaZulu-Natal, Durban, South Africagsm: +27 83 3813655 __ 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.
