[O] LaTeX table formatting

[Neuwirth Erich]

I would like to add some twists to tables.
Using the ATTR_LaTeX attribute I can control
alignment and vertical gridlines in the table.
I also would like to have horizontal gridlines,
and I would like to have multicol top headers.
tgroupt and n.tgroup in theory should me give these multicol headers,
but it does not work.

Is there a way of accomplishing what I want?




#+title: Testing R table output
#+author: Erich Neuwirth
#+date: 28. August 2012

#+ATTR_LaTeX: align=|l|c|r|r|r|r|
#+ATTR_HTML: border="2" rules="all" frame="border"
#+begin_src R :session *RPisa* :results output org :exports results
require(ascii)
mydf <- data.frame(
            year   = rep(as.character(rep(seq(2000,2009,3)),each=2)),
            gender = rep(c("f","m"),times=2),
            m1     = (11:18)/11,
            m2     = (102:109)/22,
            s1     = seq(1,2,length.out=8),
            s2     = seq(1.5,2.5,length.out=8)
   )

res <- ascii(mydf,
             digits=c(0,0,1,1,2,2),
             align=c("l","c","r","r","r","r"),
             format=c("d","s","f","f","f","f"),
             include.rownames=FALSE,
             tgroup=c("","mean","se"),
             n.tgroup=c(2,2,2))

print(res,type="org")
#+end_src