Org babel: Use variable to set a figure caption

Question

This is what I want to do:

In some-file.org:

* Table 1
#+NAME: table-1-title
Characteristcs of Data

#+BEGIN_SRC R :file table-1.svg :results output graphics file
  (
    ggplot(mtcars, aes(mpg, cyl))
    + geom_point()
  )
#+END_SRC

#+caption: > HERE I WANT TO USE THE table-1-title VAR DEFINED ABOVE <
#+attr_latex: :width 375px :placement [H]
#+RESULTS:

I want to use the table-1-title variable to set the caption. Any ideas?

Answer 1

You can use src babel blocks for org like the following:

* Table 1
#+NAME: table-1-title
Characteristcs of Data

#+BEGIN_SRC R :file table-1.svg :results output graphics file
  (
    ggplot(mtcars, aes(mpg, cyl))
    + geom_point()
  )
#+END_SRC

#+name: result-file
#+RESULTS:
table-1.svg

#+begin_src org :results replace :var title=table-1-title file=result-file
#+caption: $title
#+attr_latex: :width 375px :placement [H]
$file
#+end_src

#+RESULTS:
#+caption: Characteristcs of Data
#+attr_latex: :width 375px :placement [H]
table-1.svg