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From: Tim Visher <tim.visher@gmail.com>
To: Org Mode List <emacs-orgmode@gnu.org>
Subject: Re: how to document/comment a complex org table formula
Date: Mon, 5 Jul 2021 10:55:10 -0400	[thread overview]
Message-ID: <CAHa53uwcWesXHjpECqyqD9wLsX+2SpN3C3hNL7JtupR-zvwBTg@mail.gmail.com> (raw)
In-Reply-To: <87zgv0alwt.fsf@ucl.ac.uk>

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On Mon, Jul 5, 2021 at 10:14 AM Eric S Fraga <e.fraga@ucl.ac.uk> wrote:

> Sorry; I cannot help you directly.
> My rule of thumb is that if formulas are getting too complex to
> understand/recall clearly, it's time to use a proper programming
> language instead.  The nice thing about org is you can have tables as
> inputs to and outputs of src blocks...
> My papers often have awk source blocks that process tables to generate
> statistics for some (numerical) experiments.
> Spreadsheets, org tables being an example of such, are brilliant tools
> for simple calculations but are pretty much "write only programming
> languages".

I had never heard of using an org table as input into a source block.
That's really interesting.

The OP also poses an interesting idea that I have occasionally wanted. I
have generally accomplished this by simply including the documentation
above or below the table. In other words just having human text around it
that says 'This =formula= bit is because of X'.

But the idea of a multiline TBLFM syntax seems to be already be almost
supported. I was mildly shocked to find that this mostly works

| a | 1 |
| b | 3 |
|   | 4 |
#+TBLFM: @2$2=@-1*3
#+TBLFM: @3$2=vsum(@I..II)

Note that I don't need the usual `::` separation between formulas. Where it
breaks down is that I can't seem to reevaluate the whole table's formula by
whacking `C-u C-c C-c` anymore and, obviously, there's no syntax for adding
comments. Also I doubt that I'd be able to use any of org's keys for
editing formulas. I wonder how hard it would be to extend org's
understanding of the TBLFM to allow for this kind of syntax.

Once you had it then adding a comment character to it should be very simple.


In Christ,

Timmy V.


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  parent reply	other threads:[~2021-07-05 14:56 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-04 19:14 Uwe Brauer
2021-07-05 14:13 ` Eric S Fraga
2021-07-05 14:45   ` Uwe Brauer
2021-07-05 14:55   ` Tim Visher [this message]
2021-07-05 15:20     ` Jude DaShiell
2021-07-05 17:10       ` Uwe Brauer
2021-07-05 17:24         ` Jude DaShiell
2021-07-05 15:39     ` Eric S Fraga
2021-07-05 17:08     ` Uwe Brauer
2021-07-05 17:12 ` Karl Voit
2021-07-05 19:35   ` Uwe Brauer
2021-07-05  5:31 CHARPENTIER Emmanuel via General discussions about Org-mode.
2021-07-05  6:29 ` Uwe Brauer
2021-07-08 20:19   ` Nick Dokos

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