As a follow up to today’s post on Lyx I have produced two presentations for a beginners course using Lyx/Beamer/Sweave.
I developed a very simple working protocol for making Beamer presentations with sweave. Once everything is set up it is simple and productive. I use the standard beamer commands for any slide without R code. I don’t ever try to mix beamer features and R code on the same slide.
Here are two introductory presentations using this approach.
And the draft document (with gaps)
The source is in the zip file below (remove the .doc and replace with.zip)
Duncan Golicher's weblog 
Saludos Duncan,
Me da gusto leerte y saber que sigues enseñandonos sobre el uso de R. Yo sigo en mi periodo de aprendizaje, supongo como casi todos los fanaticos de R, como autodidacta!!!
Saludos
Alex