From: Greg Minshall <minshall@umich.edu>
To: "Johan Tolö" <johan@toloe.se>
Cc: Ihor Radchenko <yantar92@posteo.net>,
Jeremie Juste <jeremiejuste@gmail.com>, Bastien <bzg@gnu.org>,
emacs-orgmode@gnu.org, "Berry, Charles" <ccberry@health.ucsd.edu>
Subject: Re: [BUG] ob-R.el: extra empty data.frame columns generated from plain lists after recent change [9.6 (release_9.6-3-ga4d38e @ /usr/share/emacs/30.0.50/lisp/org/)]
Date: Wed, 14 Dec 2022 05:53:45 +0300 [thread overview]
Message-ID: <1519597.1670986425@archlinux> (raw)
In-Reply-To: <87tu1zv2g0.fsf@toloe.se>
hi, Johan,
> "Proper list" in the context of this discussion and pertaining to R
> would be a =list()=, not a vector which is what is usually returned by
> =c()=. A =data.frame()= is a special case of a =list()= where every
> column has to have the same length.
well, it's a language mapping problem. what one considers a "list" in
org-mode is
- well
- something like
- this
- maybe with
- this
whereas in e-lisp, '("well" "something like" '("this" '("maybe with"
"this"))).
then, the question arises of how to translate something like that to
whatever data structures a given programming language offers. it
*might* be to something that programming language calls a "list".
if we are ignoring "sub lists", then for R, one could argue either
vectors or lists. (someone -- possibly you? -- pointed out that going
from an R list to a vector is as simple as an unlist() call.)
if we ever want to provide support for sub lists, then passing lists as
R lists seems like the way to go.
cheers, Greg
----
> list("well", "something like", list("this", list("maybe with")))
[[1]]
[1] "well"
[[2]]
[1] "something like"
[[3]]
[[3]][[1]]
[1] "this"
[[3]][[2]]
[[3]][[2]][[1]]
[1] "maybe with"
> unlist(list("well", "something like", list("this", list("maybe with"))))
[1] "well" "something like" "this" "maybe with"
next prev parent reply other threads:[~2022-12-14 2:54 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-04 14:34 [BUG] ob-R.el: extra empty data.frame columns generated from plain lists after recent change [9.6 (release_9.6-3-ga4d38e @ /usr/share/emacs/30.0.50/lisp/org/)] Johan Tolö
2022-12-05 2:43 ` Greg Minshall
2022-12-05 10:29 ` Johan Tolö
2022-12-05 11:21 ` Jérémie Juste
2022-12-05 18:57 ` Berry, Charles
2022-12-06 0:41 ` Greg Minshall
2022-12-06 4:31 ` Berry, Charles
2022-12-06 6:52 ` Greg Minshall
2022-12-05 2:49 ` Greg Minshall
2022-12-06 22:11 ` Jeremie Juste
2022-12-07 1:31 ` Greg Minshall
2022-12-07 1:53 ` William Denton
2022-12-07 12:16 ` Ihor Radchenko
2022-12-07 21:08 ` Jeremie Juste
2022-12-08 9:07 ` Ihor Radchenko
2022-12-08 12:42 ` Greg Minshall
2022-12-08 12:51 ` Ihor Radchenko
2022-12-08 13:33 ` Greg Minshall
2022-12-10 12:31 ` Johan Tolö
2022-12-11 8:51 ` [FR] Allow passing nested list structures to variables in src blocks (was: [BUG] ob-R.el: extra empty data.frame columns generated from plain lists after recent change [9.6 (release_9.6-3-ga4d38e @ /usr/share/emacs/30.0.50/lisp/org/)]) Ihor Radchenko
2022-12-11 15:31 ` [BUG] ob-R.el: extra empty data.frame columns generated from plain lists after recent change [9.6 (release_9.6-3-ga4d38e @ /usr/share/emacs/30.0.50/lisp/org/)] Jeremie Juste
2022-12-12 9:47 ` Ihor Radchenko
2022-12-12 12:17 ` Greg Minshall
2022-12-12 12:27 ` Ihor Radchenko
2022-12-13 13:29 ` Johan Tolö
2022-12-14 2:53 ` Greg Minshall [this message]
2022-12-15 8:51 ` Johan Tolö
2022-12-15 17:50 ` Greg Minshall
2022-12-29 16:00 ` Bastien Guerry
2022-12-29 23:52 ` Berry, Charles
2022-12-30 9:25 ` Bastien
2022-12-31 12:42 ` Ihor Radchenko
2022-12-30 9:24 ` Bastien Guerry
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