From: Carsten Dominik <dominik@science.uva.nl>
To: Carsten Dominik <dominik@science.uva.nl>
Cc: Tassilo Horn <tassilo@member.fsf.org>, emacs-orgmode@gnu.org
Subject: Re: Spreadsheet question
Date: Fri, 5 Dec 2008 13:23:07 +0100 [thread overview]
Message-ID: <D56C4139-3421-4A5E-A7B7-2C48CB0ED8D8@uva.nl> (raw)
In-Reply-To: <4B5CC0DE-9FFB-4D8E-BC03-2D1F6D9359BA@uva.nl>
Actually, thinking more about this, I think that Tassilo is right.
Therefore, from now on, this condition will throw an error.
I would like to make this #ERROR in the table cell, but
this is not easy, so for the time being, it really stops
the evaluation with an error message.
Thanks, Tassilo, for pointing to this issue.
- Carsten
On Dec 5, 2008, at 8:26 AM, Carsten Dominik wrote:
> Hi Tassilo,
>
> I can see that this could be confusing, and maybe it should throw an
> error.
>
> The use-ase fo this are running means as column formulas
> that would be undefined for he first few rows in. Consider
> the following table:
>
>
> | i | nn | mean of last 3 |
> |---+----+----------------|
> | 1 | 4 | 4.00 |
> | 2 | 7 | 5.50 |
> | 3 | 2 | 4.33 |
> | 4 | 4 | 4.33 |
> | 5 | 5 | 3.67 |
> | 6 | 7 | 5.33 |
> | 7 | 9 | 7.00 |
> | 8 | 22 | 12.67 |
> #+TBLFM: $3=vmean([@-2$-1..$-1]);%.2f
>
> I am not sure how common this use is and who would
> be hurt by turning this behavior into an error.
>
> - Carsten
>
> On Dec 4, 2008, at 11:49 AM, Tassilo Horn wrote:
>
>> Carsten Dominik <dominik@science.uva.nl> writes:
>>
>> Hi Carsten,
>>
>>> @-1 references the row above the current. If that is a hline, if
>>> actually references the current line.
>>
>> Yes, I see that, but I wonder if that's actually the right thing to
>> do.
>> IMO defaulting to some cell/row/column which is not referenced
>> correctly
>> might obscure wrong formulas.
>>
>> For example, in my case the first calculation gave 2 which is correct
>> and only the second recalculation shows me that the forumla is wrong.
>> So I'd prefer an #ERROR if a reference doesn't exist.
>>
>> Bye,
>> Tassilo
>
prev parent reply other threads:[~2008-12-05 12:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-03 21:34 Spreadsheet question Tassilo Horn
2008-12-04 8:06 ` Carsten Dominik
2008-12-04 10:49 ` Tassilo Horn
2008-12-05 7:26 ` Carsten Dominik
2008-12-05 12:23 ` Carsten Dominik [this message]
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