From: Juan <Pechiar@computer.org>
To: Dan Davison <davison@stats.ox.ac.uk>
Cc: emacs-orgmode@gnu.org, "d.tchin" <d.tchin@voila.fr>
Subject: Re: Re: [BABEL] Output with octave + [PATCH] x2
Date: Sun, 1 Aug 2010 17:07:27 -0300 [thread overview]
Message-ID: <20100801200727.GT5569@soloJazz.com> (raw)
In-Reply-To: <871vai42nz.fsf@stats.ox.ac.uk>
Hi,
I'm starting to work with ob-octave and found several problems:
The first, for which I have a fix (see patch below) is that octave's
output was passed on as a string instead of being interpreted as a table:
8<------------------------------------------------------------
diff --git a/lisp/ob-octave.el b/lisp/ob-octave.el
index 8e99f86..d0d16fe 100644
--- a/lisp/ob-octave.el
+++ b/lisp/ob-octave.el
@@ -181,7 +181,7 @@ value of the last statement in BODY, as elisp."
(org-babel-eval
cmd
(format org-babel-octave-wrapper-method body tmp-file
tmp-file))
- (org-babel-eval-read-file tmp-file))))))
+ (org-babel-octave-import-elisp-from-file tmp-file))))))
(defun org-babel-octave-evaluate-session
(session body result-type &optional matlabp)
8<------------------------------------------------------------
Now this works:
8<------------------------------------------------------------
#+source: test_output
#+begin_src octave :results value vector
[[1 2 3];[4 5 6]]
#+end_src
#+results: test_output
| 1.00000000e+00 | 2.00000000e+00 | 3.00000000e+00 |
| 4.00000000e+00 | 5.00000000e+00 | 6.00000000e+00 |
8<------------------------------------------------------------
(before the patch you'd get a single table element with something like
"1 2 3\n 4 5 6\n" inside).
The second problem is that if I use octave table output as input to
another block, it gets interpreted as a string instead of a vector:
8<------------------------------------------------------------
#+results: test_output
| 1.25000000e+00 |
#+source: check_input
#+begin_src octave :var input=test_output() :results output
ischar( input )
size( input )
#+end_src
#+results: check_input
: input = 1.25000000e+00
: ans = 1
: ans =
: 1 14
8<------------------------------------------------------------
This has to do with the EXP notation. The 'e+00' suffix makes the
whole table into a string. The problem is with "%S" in the formatting
inside org-babel-octave-var-to-octave.
The following patch seems to fix it (and makes it possible to work with
complex numbers inside the tables)::
8<------------------------------------------------------------
diff --git a/lisp/ob-octave.el b/lisp/ob-octave.el
index 8e99f86..4329c7f 100644
--- a/lisp/ob-octave.el
+++ b/lisp/ob-octave.el
@@ -120,7 +120,7 @@ Converts an emacs-lisp variable into a string of
octave code
specifying a variable of the same value."
(if (listp var)
(concat "[" (mapconcat #'org-babel-octave-var-to-octave var ",
") "]")
- (format "%S" var)))
+ (format "%s" var)))
(defun org-babel-prep-session:octave (session params &optional
matlabp)
"Prepare SESSION according to the header arguments specified in
PARAMS."
8<------------------------------------------------------------
A third problem is with org-babel-octave-var-to-octave.
For example:
: (org-babel-octave-var-to-octave '( ( 1 2 3 ) ( 4 5 6 ) ))
: -> "[[1, 2, 3], [4, 5, 6]]"
This is not a 2x3 matrix, but a 1x6 vector:
: octave-3.2.3:1> [[1,2,3],[4,5,6]]
: ans =
: 1 2 3 4 5 6
a semicolon ';' or '\n' is needed between rows instead of a comma.
To sum up:
- 2 patches for prepare-session and importing the results back as
org-tables (I don't know if these patches break anything).
- 1 problem with matrix notation in org-babel-octave-var-to-octave.
I'll try to provide a patch for this today.
I'm not working with sessions, so I have not yet tested the original
problem reported with 'org_babel_eoe' showing up as result.
Regards,
.j.
On Sun, Aug 01, 2010 at 02:18:40PM -0400, Dan Davison wrote:
> Eric S Fraga <ucecesf@ucl.ac.uk> writes:
> > On Fri, 23 Jul 2010 16:59:43 +0000 (UTC), d.tchin <d.tchin@voila.fr> wrote:
> >> I have problem to get output back in org mode file.
next prev parent reply other threads:[~2010-08-01 20:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-23 16:59 [BABEL] Output with octave d.tchin
2010-07-23 23:12 ` Eric S Fraga
2010-07-26 14:25 ` d.tchin
2010-08-01 18:18 ` Dan Davison
2010-08-01 20:07 ` Juan [this message]
2010-08-01 20:22 ` Re: [BABEL] Output with octave [PATCH] Juan Pechiar
2010-08-04 4:18 ` Dan Davison
2010-08-04 15:15 ` d.tchin
2010-08-01 22:19 ` [BABEL] Output with octave + [PATCH] x2 Dan Davison
2010-08-01 22:55 ` [BABEL] Octave issues Juan
2010-08-01 23:32 ` Dan Davison
2010-08-02 9:30 ` [BABEL] Output with octave d.tchin
2010-08-04 4:15 ` Dan Davison
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