[R] lowercase and uppercase greek letters

[Duncan Murdoch]

On 17/09/2013 3:26 PM, Arnaud Mosnier wrote:
> Hi all,
>
> I want to present a figure including the uppercase and lowercase version of
> the greek letter phi.
>
> I know that I can use "expression" to have the symbol like in:
>
> plot(1~1, main = expression(phi))
>
> But, is there somewhere things like upper(phi) or lower(phi) ?

No functions for that.  You just need to give the letters in lowercase 
or uppercase:  lowercase is phi, uppercase is Phi.  Run
demo(plotmath) for more hints.

Duncan Murdoch