spreadsheet: empty field should be an empty field.

spreadsheet: empty field should be an empty field.

[Uwe Brauer]

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Hello

Consider the following table.


| Name   | Ex 1 | Ex2 | Ex + Ex2 |
| smith  |    1 |   2 |        3 |
| miller |      |     |        0 |
#+TBLFM: $4=$2+$3


Miller has no entries in Ex1 and Ex2 but when using C-u C-u C-c C-c also
Ex2+Ex3 gets an entry namely zero. I don't like this I would prefer if
this field remains empty.

Any way of achieving this?

Uwe Brauer 

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Re: spreadsheet: empty field should be an empty field.

[Thorsten Jolitz]

Uwe Brauer <oub@mat.ucm.es> writes:

> Hello
>
> Consider the following table.
>
>
> | Name   | Ex 1 | Ex2 | Ex + Ex2 |
> | smith  |    1 |   2 |        3 |
> | miller |      |     |        0 |
> #+TBLFM: $4=$2+$3
>
>
> Miller has no entries in Ex1 and Ex2 but when using C-u C-u C-c C-c also
> Ex2+Ex3 gets an entry namely zero. I don't like this I would prefer if
> this field remains empty.
>
> Any way of achieving this?

I think something like NaN was introduced to Org-tbls, but I don't
remember the exact syntax, maybe try with 'nan':

http://lists.gnu.org/archive/html/emacs-orgmode/2012-12/msg00983.html

-- 
cheers,
Thorsten

Re: spreadsheet: empty field should be an empty field.

[Michael Brand]

On Tue, Sep 16, 2014 at 11:42 AM, Thorsten Jolitz <tjolitz@gmail.com> wrote:
> I think something like NaN was introduced to Org-tbls, but I don't
> remember the exact syntax, maybe try with 'nan':
>
> http://lists.gnu.org/archive/html/emacs-orgmode/2012-12/msg00983.html

Yes, and I already documented the OP use case in the second example here:
http://orgmode.org/manual/Formula-syntax-for-Calc.html

Michael

Re: spreadsheet: empty field should be an empty field.

[Nicolas Richard]

Michael Brand <michael.ch.brand@gmail.com> writes:

> On Tue, Sep 16, 2014 at 11:42 AM, Thorsten Jolitz <tjolitz@gmail.com> wrote:
>> I think something like NaN was introduced to Org-tbls, but I don't
>> remember the exact syntax, maybe try with 'nan':
>>
>> http://lists.gnu.org/archive/html/emacs-orgmode/2012-12/msg00983.html
>
> Yes, and I already documented the OP use case in the second example here:
> http://orgmode.org/manual/Formula-syntax-for-Calc.html

This is something I tend to forget (and usually work around with some
lisp). Thanks for the reminder.

-- 
Nicolas Richard

Re: spreadsheet: empty field should be an empty field.

[Uwe Brauer]

   > Uwe Brauer <oub@mat.ucm.es> writes:

   > I think something like NaN was introduced to Org-tbls, but I don't
   > remember the exact syntax, maybe try with 'nan':

   > Http://lists.gnu.org/archive/html/emacs-orgmode/2012-12/msg00983.html

Aha, so I would indeed get:

| Name   | Ex 1 | Ex2 | Ex + Ex2 |
| smith  |    1 |   2 |        3 |
| miller |      |     |          |
#+TBLFM: $4=$2+$3

this is patch is from 2012, which orgmode version did it enter then?

Uwe Brauer 

Re: spreadsheet: empty field should be an empty field.

[Michael Brand]

Hi Uwe

On Tue, Sep 16, 2014 at 1:02 PM, Uwe Brauer <oub@mat.ucm.es> wrote:
> this is patch is from 2012, which orgmode version did it enter then?

I implemented it in release_7.9.2-908-ga77442b and "git tag
--contains" tells that it is available since Org release 8.0 which is
newer than the pre-packaged Org mode of the currently newest released
Emacs 23.3. So you need to upgrade Org mode as described here:
http://orgmode.org/manual/Installation.html

Michael

Re: spreadsheet: empty field should be an empty field.

[Michael Brand]

On Tue, Sep 16, 2014 at 1:56 PM, Michael Brand
<michael.ch.brand@gmail.com> wrote:
> the currently newest released Emacs 23.3.

This was (hopefully obviously) a typo and should have been

    the currently newest released Emacs 24.3.

Michael