[R] varphi symbol for ylab expression
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue Jan 24 09:07:34 CET 2006
On Mon, 23 Jan 2006, Kilian Plank wrote:
> it is possible to invoke certain graphical functions (e.g. curve)
> with an expression argument, e.g. "ylab=expression(phi)".
Well, that's a internal (to curve, via plot.default) call to title(), and
the use of expressions in graphical labels is called 'plotmath'.
> There are some greek letters with a second script. For instance, in
> latex two symbols do exist: phi and varphi. Is the second symbol also
> available in an expression()? If yes, how?
?plotmath tells you 'phi1' (in current R 2.2.1). The next version of R
(2.3.0) will also allow varphi as a synonym.
Be careful though: TeX (not 'latex') names for these are not standard, and
over e.g. 'varpi' decidely confusing. R primarily uses the Unicode/Adobe
names.
--
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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