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temporarily deferred "use textConnection to pass tsv to R"

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Eric Schulte 2009-05-20 17:48:47 -07:00
parent 8d967c9fbb
commit 2cc09a2029
1 changed files with 33 additions and 30 deletions
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@ -3,42 +3,13 @@
#+SEQ_TODO: TODO OPEN PROPOSED | DONE DEFERRED REJECTED
#+STARTUP: oddeven
* Tasks [10/20]
* Tasks [11/20]
** TODO results-type header (scalar/vector)
In response to a point in Dan's email. We should allow the user to
force scalar or vector results. This could be done with a header
argument, and the default behavior could be controlled through a
configuration variable.
** TODO use textConnection to pass tsv to R?
When passing args from the org buffer to R, the following route is
used: arg in buffer -> elisp -> tsv on file -> data frame in R. I
think it would be possible to avoid having to write to file by
constructing an R expression in litorgy-R-assign-elisp, something
like this
#+begin_src emacs-lisp
(litorgy-R-input-command
(format "%s <- read.table(textConnection(\"%s\"), sep=\"\\t\", as.is=TRUE)"
name (orgtbl-to-tsv value '(:sep "\t" :fmt litorgy-R-quote-tsv-field))))
#+end_src
I haven't tried to implement this yet as it's basically just
fiddling with something that works. The only reason for it I can
think of would be efficiency and I haven't tested that.
[Eric] Sounds like a good idea, I'll bump this up to TODO. Didn't
work after an initial test, but still worth trying.
for quick tests
#+tblname: quick-test
| 1 | 2 | 3 |
#+begin_src R :var vec=quick-test
mean(mean(vec))
#+end_src
** TODO re-implement R evaluation using ess-command or ess-execute
I don't have any complaints with the current R evaluation code or
behaviour, but I think it would be good to use the ESS functions
@ -198,6 +169,38 @@ one that comes to mind is the ability to treat a source-code block
like a function which accepts arguments and returns results. Actually
this can be it's own TODO (see [[* source blocks as functions][source blocks as functions]]).
** DEFERRED use textConnection to pass tsv to R?
When passing args from the org buffer to R, the following route is
used: arg in buffer -> elisp -> tsv on file -> data frame in R. I
think it would be possible to avoid having to write to file by
constructing an R expression in litorgy-R-assign-elisp, something
like this
#+begin_src emacs-lisp
(litorgy-R-input-command
(format "%s <- read.table(textConnection(\"%s\"), sep=\"\\t\", as.is=TRUE)"
name (orgtbl-to-tsv value '(:sep "\t" :fmt litorgy-R-quote-tsv-field))))
#+end_src
I haven't tried to implement this yet as it's basically just
fiddling with something that works. The only reason for it I can
think of would be efficiency and I haven't tested that.
This Didn't work after an initial test. I still think this is a
good idea (I also think we should try to do something similar when
writing out results frmo R to elisp) however as it wouldn't result
in any functional changes I'm bumping it down to deferred for
now. [Eric]
for quick tests
#+tblname: quick-test
| 1 | 2 | 3 |
#+begin_src R :var vec=quick-test
mean(mean(vec))
#+end_src
** DONE litorgy tests litorgy [1/1]
since we are accumulating this nice collection of source-code blocks
in the sandbox section we should make use of them as unit tests.