* Generating captions--is there a better way?
@ 2012-11-02 3:00 Michael Gauland
2012-11-02 5:43 ` cberry
0 siblings, 1 reply; 2+ messages in thread
From: Michael Gauland @ 2012-11-02 3:00 UTC (permalink / raw)
To: emacs-orgmode
I use R to plot data, and like to include information about the plot in the
caption. I do this by combining two named SRC blocks--one for the image, and one
for the caption--and then put their #+RESULTS: together. The caption is the
tricky bit; I use R to print a string that starts with #+CAPTION:, shown in the
exmaple below. While this works, I've wondered if there is a more elegant way to
do this. How do others do this?
Kind Regards,
Mike Gauland
----- example -----
#+NAME: image
#+HEADER: :session
#+HEADER: :results graphics
#+HEADER: :exports results
#+HEADER: :file (org-babel-temp-file "./figure-" ".pdf")
#+BEGIN_SRC R
x <- rnorm(100)
hist(x)
#+END_SRC
#+NAME: caption
#+HEADER: :session
#+HEADER: :results raw
#+HEADER: :exports results
#+BEGIN_SRC R
print(paste("#+CAPTION: The mean value is ",
format(mean(x), digits=3),
".", sep=""));
#+END_SRC
#+RESULTS: caption
#+RESULTS: image
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: Generating captions--is there a better way?
2012-11-02 3:00 Generating captions--is there a better way? Michael Gauland
@ 2012-11-02 5:43 ` cberry
0 siblings, 0 replies; 2+ messages in thread
From: cberry @ 2012-11-02 5:43 UTC (permalink / raw)
To: emacs-orgmode
Michael Gauland <mikelygee@no8wireless.co.nz> writes:
> I use R to plot data, and like to include information about the plot in the
> caption. I do this by combining two named SRC blocks--one for the image, and one
> for the caption--and then put their #+RESULTS: together. The caption is the
> tricky bit; I use R to print a string that starts with #+CAPTION:, shown in the
> exmaple below. While this works, I've wondered if there is a more elegant way to
> do this. How do others do this?
>
[snip]
For something simple like this, I'd use:
,----
| #+PROPERTY: session *R*
| #+PROPERTY: results output
|
| #+NAME: image
| #+HEADER: :results graphics
| #+HEADER: :exports results
| #+HEADER: :file (org-babel-temp-file "./figure-" ".pdf")
| #+BEGIN_SRC R
| x <- rnorm(100)
| caption.string <-
| sprintf("The mean value is %.3f.\n",mean(x))
| hist(x)
| #+END_SRC
|
|
| #+CAPTION: src_R[:results raw]{ cat(caption.string) }
| #+RESULTS: image
`----
For more complicated stuff I use ravel[1] to export as *.Rnw and then use
knitr on the result.
HTH,
Chuck
[1] see
https://github.com/chasberry/orgmode-accessories/blob/master/ravel-org.md
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