General guide for creating publication quality tables using R, Sweave, and LaTeX

Question

There are a range of tools available for creating publication quality tables using R, Sweave, and LaTeX. In particular, there are helper functions like latex in

Answer 1

xtable has worked fine for me so far. In combination with siunitx, and when necessary, longtable, it can produce pretty effective tables, in my opinion. With packages like booktabs and caption, the aesthetics can be pleasing too.

I am not sure this level of detail was asked for by the OP, but for what it's worth, the basic implementation could be something along these lines: https://tex.stackexchange.com/questions/41067/caption-for-longtable-in-sweave/41183#41183 (my own answer to another question).