On May 4, 2011, at 8:43 AM, Richard M. Heiberger wrote:
> David,
>
> That is not clear from the original request. The request was for
> {}^18*O
I see your point. The use of the phantom would also allow a pre-
superscript with no preceding "delta". Thanks for bearing with my
obtuseness.
--
David.
>
> It wasn't for delta^18
> Therefore I put the space there to be sure that the 18 was seen as
> pre-superscript of O,
> not as a post-superscript of delta. I probably should also have
> used ~ as
>
> plot(1:10, xlab=expression(delta~{}^18*"O" * " VSMOW []"))
>
> The original was unclear on [], since it was inside half a set of
> quotation marks.
>
> Rich
>
>
>
> On Wed, May 4, 2011 at 11:01 AM, David Winsemius <dwinsem...@comcast.net
> > wrote:
>
> On May 4, 2011, at 7:28 AM, Richard M. Heiberger wrote:
>
> Dos this do what you want?
>
> plot(1:10, xlab=expression(delta*{}^18*"O" * " VSMOW []"))
>
> The specific is to put an empty item there to hold the superscript.
>
> I do not think that is necessary:
>
>
> plot(1:10, xlab=expression(delta^18*O~VSMOW[""]))
>
> (I wasn't sure if the [.] operation was supposed to be a subscript.)
>
> I generally avoid spaces in plotmath expressions and use tildes "~"
> to accomplish any needed spaces. The asterisk "*" is the non-spacing
> separator between elements.
>
>
>
>
> On Wed, May 4, 2011 at 9:37 AM, Janhal <janine.hal...@unil.ch> wrote:
>
> Salut,
> I have been struggling to superscript the 18 before the O without ^
> visible
> and found only help to superscript numbers after the letter. Thanks to
> anyone who can help.
> xlab=expression(delta*18O VSMOW []")
> Cheers,
> Janine
>
> --
>
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
>
>
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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