On Mon, 14 Dec 2015, Andreas Leha wrote:
Hi all,
I'd like to hear your ideas on how to include noweb references to code
blocks in a way that the default values are used as parameter values.
Here is a little example:
#+PROPERTY: header-args:R :session *testR*
The background is that I like to use Org mode table to record small data.
#+name: datatable
| A | B |
|---+----|
| 1 | 10 |
| 2 | 20 |
Usually I want to pre-process and/or convert such data.
#+name: read_datatable
#+header: :var datatable=datatable
#+begin_src R :results none
datatable$B <- 10 * datatable$B
#+end_src
Later I would like to use that data in larger (R-) code blocks. I'd
like such code blocks to DWIM:
#+name: some_code
#+begin_src R :noweb yes :results graphics :file testplot.png
<<read_datatable>>
plot(datatable$A, datatable$B)
#+end_src
But they do not: They are not stand alone and do not execute -- unless I
executed `read_datatable' manually/by chance upfront.
Try this:
#+name: read_datatable
#+header: :var datatable=datatable
#+begin_src R :results value :colnames yes
datatable$B <- 10 * datatable$B
datatable
#+end_src
#+name: some_code
#+HEADER: :var datatable=read_datatable()
#+begin_src R :noweb yes :results graphics :file testplot.png
plot(datatable$A, datatable$B)
#+end_src
HTH,
Chuck
