From: Dan Davison <davison@stats.ox.ac.uk>
To: Bart Bunting <bart@bunting.net.au>
Cc: emacs-orgmode@gnu.org
Subject: Re: Babel: help with tables and code blocks?
Date: Sun, 08 Aug 2010 15:34:02 -0400 [thread overview]
Message-ID: <87r5i8dhlh.fsf@stats.ox.ac.uk> (raw)
In-Reply-To: <878w4hcyzz.fsf@bunting.net.au> (Bart Bunting's message of "Sun, 08 Aug 2010 18:03:28 +1000")
Bart Bunting <bart@bunting.net.au> writes:
> Hi everyone,
>
> I'm trying to get my head around babel and getting info back into a
> table.
>
> The below org file tracks expenses and the perl code simply sums them
> up.
>
> The code is working but I now want to get the total back into another table. What I have is not
> working can someone tell me what I'm doing wrong here?
>
> Cheers
>
> Bart
>
> * Expenses
>
> #+tblname: expenses
> |------------+-----------------------------------+--------|
> | Date | What | Amount |
> |------------+-----------------------------------+--------|
> | 2010-07-26 | Breakfast | 5 |
> | 2010-07-26 | groceries | 8.5 |
> | 2010-07-26 | butchers - chicken | 5.5 |
> | 2010-07-27 | umart - video card, kvm, speakers | 136 |
>
> * Code
>
> #+srcname: totals
> #+begin_src perl :var details=expenses[1:-1]
> my $total = 0;
> foreach my $row (@$details) {
> $total += @$row[2];
> }
>
> return $total;
> #+end_src
>
> #+results: totals
> : 155
>
>
>
> * Totals
>
> | Total | #ERROR |
> #+TBLFM: $2=#+call: totals(details=expenses)
Hi Bart,
You've mixed up #+call and sbe there. sbe is what you want to use in a
table formula; #+call and #+lob are for standalone lines. Here are a few
examples of different ways to do what you're doing. Hopefully they make
things clear.
Dan
--8<---------------cut here---------------start------------->8---
* Totals
** Using a table formula
*** Relying on default argument to totals block
| Total | 155 |
#+TBLFM: $2='(sbe "totals")
*** Providing argument explicitly
The dots are a bug. We'll fix it.
**** version 1
| Total | 155... |
#+TBLFM: $2='(sbe "totals(details=expenses[1:-1])")
**** version 2
| Total | 155... |
#+TBLFM: $2='(sbe "totals" (details "expenses[1:-1]"))
** Using call/lob
#+call and #+lob are synonyms
*** Relying on default argument to totals block
#+call: totals()
#+results: totals()
: 155
or equivalently (it outputs into the same results block):
#+lob: totals()
*** Providing argument explicitly
#+call: totals(details=expenses[1:-1])
#+results: totals(details=expenses[1:-1])
: 155
--8<---------------cut here---------------end--------------->8---
>
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next prev parent reply other threads:[~2010-08-08 19:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-08 8:03 Babel: help with tables and code blocks? Bart Bunting
2010-08-08 19:34 ` Dan Davison [this message]
2010-08-08 22:20 ` Bart Bunting
2010-08-08 22:38 ` Dan Davison
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