Try this:

 mtext(text=bquote(log[2]~intensity))

On Wed, Jan 7, 2009 at 5:36 AM, Timthy Chang <henchao.chang@gmail.com>wrote:

>
> A similar question:
>
> mtext(text="log2 intensity ")
> How can I change "2" to be subscript? (see picture below)
>
>
> http://www.nabble.com/file/p21326192/log2_intensity.jpg
> --
> View this message in context:
> http://www.nabble.com/Subscript-tp12241351p21326192.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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