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From: d.tchin <d.tchin@voila.fr>
To: emacs-orgmode@gnu.org
Subject: Re: [BABEL] Output with octave [PATCH]
Date: Wed, 4 Aug 2010 15:15:18 +0000 (UTC)	[thread overview]
Message-ID: <loom.20100804T170447-481@post.gmane.org> (raw)
In-Reply-To: 87aap3roxn.fsf@stats.ox.ac.uk

Dan Davison <davison <at> stats.ox.ac.uk> writes:

> 
> Hi Juan and d.tchin,
> 
> One thing I'd like to ask for advice about is the behaviour of tabular
> data structures containing strings. For example
> 
> #+begin_src octave
> ans = [['a','b'];['c','d']]
> #+end_src
> 
> #+results:
> : acbd
> 
> I don't know if my syntax above is correct, but it seems to me that this
> is a 2x2 table of some sort and so it would seem natural to me for that
> to return
> 
> | a | b |
> | c | d |
> 
> however, if you look at the code we are using below, you'll see that
> ischar() returns 1 for this object and so it gets written as a
> string. Can you suggest how we should alter the octave/matlab code
> below? Or perhaps people don't use tabular data structures containing
> strings in these languages?
> 
> if ischar(ans), fid = fopen('%s', 'w'); fprintf(fid, '%%s\\n', ans); fclose
(fid);
> else, dlmwrite('%s', ans, '\\t')
> end"
> 
> Dan
> 

I use typeinfo defined in Octave to see what kind of object Octave would 
consider as output. You can see that [["a',"b"];["c","d"]] is considered
as string and not a matrix. And the output in Octave is 

ans =

ab
cd

See tests below done with character and number. Hope that can help.

--8<---------------cut here---------------start------------->8---
* Output typeinfo
** Character
#+begin_src octave
  typeinfo("a")
#+end_src

#+results:
: string

#+begin_src octave
  ["c","d"]
#+end_src

#+results:
: cd


#+begin_src octave
  [["a","b"];["c","d"]]
#+end_src

#+results:
: acbd


#+begin_src octave
  typeinfo([["a","b"];["c","d"]])
#+end_src

#+results:
: string


** Number

#+begin_src octave
  typeinfo(1)
#+end_src

#+results:
: scalar


#+begin_src octave
  [1,2]
#+end_src

#+results:
:  1.00000000e+000 2.00000000e+000


#+begin_src octave
  typeinfo([1,2])
#+end_src

#+results:
: matrix


#+begin_src octave
  ([[1,2];[3,4]])
#+end_src

#+results:
:  1.00000000e+000 2.00000000e+000
:  3.00000000e+000 4.00000000e+000


#+begin_src octave
  typeinfo([[1,2];[3,4]])
#+end_src

#+results:
: matrix

--8<---------------cut here---------------end--------------->8---

next prev parent reply	other threads:[~2010-08-04 15:15 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     ` Re: [BABEL] Output with octave + [PATCH] x2 Juan
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 [this message]
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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