Re: [R] Superscript number before letter

From: David Winsemius <>
Date: Wed, 04 May 2011 08:01:08 -0700

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 <> 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 mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Thu 05 May 2011 - 06:25:02 GMT

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