Re: inline Babel calls in math environments and table cells

[Charles Berry <ccberry@ucsd.edu>]

Jay Kerns <gjkernsysu <at> gmail.com> writes:

> 
> Hello,
> 
> I went back and spent some time to rethink how I was approaching my
> problem.  Instead of inline src blocks like this:
> 
> \( SRC_R{blah} \)
> 
> or this
> 
> | SRC_R{blah} |

[deleted noweb stuff]

> This method works. I think it would be cool if it were possible to
> evaluate inline src blocks all over the place but on the other hand
> there are other tools which might be better suited for that kind of
> work. At least for the time being.  
> 


Jay,

It seems unlikely that inline src blocks will be allowed in table cells.

In org-element.el, there is this in org-element-object-restrictions - the 
alist of objects restrictions:

,----
|   ;; Ignore inline babel call and inline src block as formulas are
|   ;; possible.  Also ignore line breaks and statistics cookies.
|     (table-cell export-snippet footnote-reference latex-or-entity link macro
| 	  radio-target sub/superscript target text-markup timestamp)
`----
  

Another way to get where you want to go is to use the =brew= R package. The
markup is very simple - use <%= code %> in place of src_R{ code }.

Example:

,----
| #+DRAWERS: TABLEDRAWER
|
| * jay's query
|   :PROPERTIES:
|   :session:  *R:2*
|   :exports:  both
|   :END:
| 
| #+BEGIN_SRC R :results value
| A <- matrix(sample(100, size = 6), nrow = 2)
| #+END_SRC
| 
| #+RESULTS:
| | 51 | 77 | 63 |
| | 65 | 20 | 56 |
| 
| Put a table with brew markup in an example block in a drawer, so it
| will not appear in the output.
| 
| :TABLEDRAWER:
| #+NAME: src-blk-out
| #+BEGIN_EXAMPLE
| | a | b | <%= A[1,3] %> |
| | c | d | eeeee         |
| #+END_EXAMPLE
| :END:
| 
| Then use a call to ~brew()~ to run it. Note =:results output raw=
| #+NAME: test-src-blk-out 
| #+BEGIN_SRC R :results output raw :var tab=src-blk-out
| require(brew)
| brew(text=tab)
| #+END_SRC
`----

With point in or below the headline,

  C-c C-e C-s C-b l L 

exports the above as 

,----
| \begin{verbatim}
| A <- matrix(sample(100, size = 6), nrow = 2)
| \end{verbatim}
| 
| \begin{center}
| \begin{tabular}{rrr}
| 2 & 16 & 30\\
| 11 & 81 & 86\\
| \end{tabular}
| \end{center}
| 
| Put a table with brew markup in an example block in a drawer, so it
| will not appear in the output.
| 
| Then use a call to \verb~brew()~ to run it. Note \texttt{:results output raw}
| \label{test-src-blk-out}
| \begin{verbatim}
| require(brew)
| brew(text=tab)
| \end{verbatim}
| 
| \begin{center}
| \begin{tabular}{llr}
| a & b & 30\\
| c & d & eeeee\\
| \end{tabular}
| \end{center}
`----