[R] \ll and \gg in expression()

[Prof Brian Ripley]

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, 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.

> _____________________________
> Professor Michael Kubovy
> University of Virginia
> Department of Psychology
[...]

> 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.

Yes, please do read it!

-- 
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