Re: How do you use call and lob in org-babel?

From: Dan Davison <davison@stats.ox.ac.uk>
To: Inquisitive Scientist <inquisitive.scientist@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: How do you use call and lob in org-babel?
Date: Thu, 05 Aug 2010 13:02:02 -0400	[thread overview]
Message-ID: <87lj8l0z91.fsf@stats.ox.ac.uk> (raw)
In-Reply-To: <AANLkTik5iYxh_wKgLSMhhWM-brXQNq0d7JoJgCUcBRGz@mail.gmail.com> (Inquisitive Scientist's message of "Thu, 5 Aug 2010 09:24:46 -0400")

Hi I.S.,

Inquisitive Scientist <inquisitive.scientist@gmail.com> writes:

> Dear Experts,
>
> I am confused about how to use lob and call in org-babel. First I
> define a simple function like square:
> #+srcname: square(x)
> #+begin_src python
> return x*x
> #+end_src
>
> A line like
> : #+lob: square(x=2)
> does not seem to produce any result either in the buffer or on export:
> #+lob: square(x=2)
>
> The same seems to happen with call:
> : #+call: square(x=2)
> #+call: square(x=2)

I'm not seeing this. The following works for me with C-c C-c on the
lob/call lines. However, note that the #+call line will *appear* not to
do anything as things stand, because it sees the existing results block
created by the #+lob call.

#+srcname: square(x)
#+begin_src python
return x*x
#+end_src

#+lob: square(x=2)

#+results: square(x=2)
: 4

#+call: square(x=2)

Is the above definitely not working for you? What version of org are you
using?

Dan

>
> Instead, to get things to work I need to do something like:
> : | 4 |
> : #+TBLFM: @1$1='(sbe "square" (x 2))
> to get:
> | 4 |
> #+TBLFM: @1$1='(sbe "square" (x 2))
>
> Thanks,
> -I.S.
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