[R] \ll and \gg in expression()
Prof Brian Ripley
ripley at stats.ox.ac.uk
Sun Feb 10 06:37:26 CET 2008
On Sat, 9 Feb 2008, Michael Kubovy wrote:
>
> On Feb 9, 2008, at 4:41 PM, Prof Brian Ripley wrote:
>
>> On Sat, 9 Feb 2008, Michael Kubovy wrote:
>>
>>> How do I enter 'much greater than' and 'much less than' symbols in an
>>> expression?
>>
>> Those are not in the Adobe Symbol encoding used for plotmath.
>>
>> Since you have not told us your platform and locale as requested in the
>> posting guide
>
> R version 2.7.0 Under development (unstable) (2008-02-05 r44340)
> i386-apple-darwin8.10.1
>
> locale:
> C
>
>> I don't know if the following is relevant to you.
>>
>> If you have a suitable Unicode font and the means to use it (which most
>> likely means a UTF-8 locale in R < 2.7.0) they are the glyphs for "\u226a"
>> and "\u226b" (see
>> http://www.alanwood.net/unicode/mathematical_operators.html). A quick
>> check suggests that not many fonts do.
>
> Thanks. The Mac character palette tells me that they correspond to Unicode
> 226A and B or UTF8 E2 89 AA and AB.
>
> My question now is, how do I tell expression() to use the glyphs for these?
"\u226a" and "\u226b", as I said. But not in a C locale.
--
Brian D. Ripley, ripley at 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, UK Fax: +44 1865 272595
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