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Re: [O] Computations on properties
From: |
Thorsten Jolitz |
Subject: |
Re: [O] Computations on properties |
Date: |
Wed, 09 Oct 2013 14:50:11 +0200 |
User-agent: |
Gnus/5.130002 (Ma Gnus v0.2) Emacs/24.3 (gnu/linux) |
Thierry Pellé <address@hidden> writes:
Hi,
> I'm seeking how to do something like that
>
> Let the following text inserted in an org-mode file
>
> * Mean Calculation
> :PROPERTIES:
> :VAL1: 5
> :VAL2: 10
> :COEF: 10
> :END:
>
> I would like to append the result of a computation
> like RES=(VAL1*COEF+VAL2)/(COEF+1)
>
> Something like
> * Mean Calculation
> ...
> :END:
>
> Mean Calculation=RES (where RES is the value of the result)
>
> I think to do this with a python script but is there a more org-mode/emacs
> method to do it?
>
> Thanks
> Thierry
>
> PS: I don't want to use org spreadsheet
But that would probably be the appropriate tool. Otherwise you could use
the property API in an elisp program
,------------------------------------------------------
| http://orgmode.org/manual/Using-the-property-API.html
`------------------------------------------------------
to read out the property values. Then do the calculation and finally add
a new property with the result.
--
cheers,
Thorsten