org-mode: add a header to a table programmatically - r

Question

I have a table definied in org-mode:
`#+RESULTS[4fc5d440d2954e8355d32d8004cab567f9918a64]: table
| 7.4159 | 3.0522 | 5.9452 |
| -1.0548 | 12.574 | -6.5001 |
| 7.4159 | 3.0522 | 5.9452 |
| 5.1884 | 4.9813 | 4.9813 |
`
and I want to produce the following table:
#+caption: Caption of my table
| | group 1 | group 2 | group 3 |
|--------+---------+---------+---------|
| plan 1 | 7.416 | 3.052 | 5.945 |
| plan 2 | -1.055 | 12.574 | -6.5 |
| plan 3 | 7.416 | 3.052 | 5.945 |
| plan 4 | 5.1884 | 4.9813 | 4.9813 |
How can I accomplish that? Here is what I tried (in R):
`
#+begin_src R :colnames yes :var table=table :session
data.frame(table)
#+end_src
`
But of course it doesn't work, here is what I get:
`#RESULTS:
| X7.4159 | X3.0522 | X5.9452 |
|---------+---------+---------|
| -1.0548 | 12.574 | -6.5001 |
| 7.4159 | 3.0522 | 5.9452 |
| 5.1884 | 4.9813 | 4.9813 |`
Any suggestions?
thanks!

Answer 1

This gets pretty close. first define this function:
#+BEGIN_SRC emacs-lisp
(defun add-caption (caption)
(concat (format "org\n#+caption: %s" caption)))
#+END_SRC
Next, use this kind of src block. I use python, but it should work in R too, you just need the :wrap. I passed your data in through the var, you don't need it if you generate the data in the block.
#+BEGIN_SRC python :results value :var data=data :wrap (add-caption "Some really long, uninteresting, caption about data that is in this table.")
data.insert(0, ["", "group 1", "group 2", "group 3"])
data.insert(1, None)
return data
#+END_SRC
This outputs
#+BEGIN_org
#+caption: Some really long, uninteresting, caption about data that is in this table.
| | group 1 | group 2 | group 3 |
|--------+---------+---------+---------|
| plan 1 | 7.416 | 3.052 | 5.945 |
| plan 2 | -1.055 | 12.574 | -6.5 |
| plan 3 | 7.416 | 3.052 | 5.945 |
| plan 4 | 5.1884 | 4.9813 | 4.9813 |
#+END_org
and it exports ok too I think.