Hello,
>
> Jérémie Juste <jeremiejuste@gmail.com> writes:
>
>> Is it possible to activate the latex preview in org-mode within in latex
>> bloc?

Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:
>
> It isn't possible out of the box. Org doesn't look at the contents of
> src blocks, which are supposed to be written in a foreign language.
>
> However, you can probably write a function for your own use, starting
> from `org-format-latex'.
>
> Regards,


Actually, there is a simpler way of previewing the latex code from the output of a babel source block. We just need to specify   :results output raw. For example

#+begin_src R :results output raw
       <some code that will output a latex table>
#+end_src

Best regards

Jeremie Juste