From: Karl Voit <devnull@Karl-Voit.at>
To: emacs-orgmode@gnu.org
Subject: Re: Calculate differences of remote table numbers
Date: Thu, 4 Oct 2018 09:25:48 +0200 [thread overview]
Message-ID: <2018-10-04T09-23-01@devnull.Karl-Voit.at> (raw)
In-Reply-To: 87d0st1v5v.fsf@alphaville.usersys.redhat.com
Hi Nick,
* Nick Dokos <ndokos@gmail.com> wrote:
> Karl Voit <devnull@Karl-Voit.at> writes:
>
>> I'd like to calculate the differences between rows of numbers of a
>> different table.
>>
>> Here is a minimal example showing the issue:
>>
>> #+NAME: my-table
>> | Numbers |
>>
>> |---------|
>> | 1 |
>> | 5 |
>> | 8 |
>> | 12 |
>> | 15 |
>>
>> This is what I expected: "exp. Reference1" and "exp. Reference2" is here only
>> to demonstrate that the assumed references are wrong in the third table. "exp.
>> Difference" is the column I want to get in the first place. I don't want to see
>> Reference 1 or 2 at all in my solution (since I need a couple of those
>> difference-columns).
>>
>> | Line | exp. Reference1 | exp. Reference2 | exp. Difference |
>> |------+-----------------+-----------------+-----------------|
>> | 1 | 0 | 0 | 0 |
>> | 2 | 5 | 1 | 4 |
>> | 3 | 8 | 5 | 3 |
>> | 4 | 12 | 8 | 4 |
>> | 5 | 15 | 12 | 3 |
>>
>> This is what I get instead:
>>
>> | Line | actual Reference1 | actual Reference2 | Difference |
>> |------+-------------------+-------------------+------------|
>> | 1 | 0 | 0 | 0 |
>> | 2 | 6 | 1 | 5 |
>> | 3 | 12 | 1 | 11 |
>> | 4 | 20 | 1 | 19 |
>> | 5 | 30 | 1 | 29 |
>
> @# is the row number, so to refer to that row, you need @@#. Something like this,
> although I didn't test to see if everything gets parsed correctly:
>
> #+TBLFM: $2=if(2 == @#, 0, remote(my-table,@@#$1))::$3=if(2 == @#, 0, remote(my-table,@@#-1$1))::$4=if(2 == @#, 0, (remote(my-table,@@#$1)-remote(my-table,@@#-1$1)))
This is a huge step forward:
#+NAME: my-table
| Numbers |
|---------|
| 1 |
| 5 |
| 8 |
| 12 |
| 15 |
| Line | exp. Reference1 | exp. Reference2 | exp. Difference |
|------+-----------------+-----------------+-----------------|
| 1 | 0 | 0 | 0 |
| 2 | 5 | 1 | 4 |
| 3 | 8 | 5 | 3 |
| 4 | 12 | 8 | 4 |
| 5 | 15 | 12 | 3 |
| Line | actual Reference1 | actual Reference2 | Difference |
|------+-------------------+-------------------+------------|
| 1 | 0 | 0 | 0 |
| 2 | 5 | 5 | 0 |
| 3 | 8 | 8 | 0 |
| 4 | 12 | 12 | 0 |
| 5 | 15 | 15 | 0 |
#+TBLFM: $2=if(2 == @#, 0, remote(my-table,@@#$1))::$3=if(2 == @#, 0, remote(my-table,@@#-1$1))::$4=if(2 == @#, 0, (remote(my-table,@@#$1)-remote(my-table,@@#-1$1)))
Somehow, the "-1" in "@@#-1$1" does not have any effect: "@@#$1" and
"@@#-1$" gives the same results.
Do you have any idea why?
> Turning on formula debugging with `C-c {' helps.
Woha! I didn't know that! And I also didn't know =C-c }= for
displaying column/row numbers :-O *This* is going to be handy for me
;-)
--
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next prev parent reply other threads:[~2018-10-04 7:26 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-01 15:01 Calculate differences of remote table numbers Karl Voit
2018-10-01 16:36 ` Nick Dokos
2018-10-04 7:25 ` Karl Voit [this message]
2018-10-04 16:37 ` Nick Dokos
2018-10-05 17:46 ` Michael Brand
2018-10-08 15:19 ` Karl Voit
2018-10-08 15:50 ` Eric S Fraga
2018-10-08 16:16 ` Complexity of using spreadsheet functionality (was: Calculate differences of remote table numbers) Karl Voit
2018-10-09 5:34 ` Complexity of using spreadsheet functionality Eric S Fraga
2018-10-12 21:48 ` Complexity of using spreadsheet functionality (was: Calculate differences of remote table numbers) Samuel Wales
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