[R] latex for xlab

[Olivier Martin]

Hi all,

I don't find the solution to my problem .
I represent  some points and i would like  a title for  the x axis.

I would like to write log_2 where 2 is a subscript of log.
I think  i have to use the functions parse or expression but i have some 
difficulties
to understand how i should use them.

Thanks


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Olivier MARTIN
PhD student                  phone : (33) 04 76 61 53 55
Projet IS2                               06 08 67 93 42		
INRIA Rhone-Alpes            fax   : (33) 04 76 61 54 77
655, Av. de l'Europe
Montbonnot                   e-mail: olivier.martin at inrialpes.fr
38334 Saint Ismier cedex     web   : http://www.inrialpes.fr/is2/people/omartin
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