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[Orgmode] Date arithmetic in tables
From: |
Chris Randle |
Subject: |
[Orgmode] Date arithmetic in tables |
Date: |
Tue, 29 Apr 2008 13:29:10 +0100 |
Hi All
This post started as a problem and question, but I found a solution. I
thought I'd document my observations. Forgive me if it's obvious, but it
wasn't to me!
I had trouble with date arithmetic in an org table, I think because the
function thought that inactive dates were vectors:
| Date | Days before today
|
|------------------+----------------------------------------------------
----|
| <2008-03-22 Sat> | 38.540
|
| [2008-03-22 Sat] | [<2002-11-24 Sun 12:57>, <2008-04-29 Tue 12:57> -
Sat] |
#+TBLFM: $2=now()-$1
I didn't want to use active dates, as I didn't want the heading to
appear in the agenda. Starting to play around, I discovered that
<[2008-03-22 Sat]>
would work as an inactive date acceptable to the formula, but the
trailing ">" was stripped when using keystrokes to adjust the date. So
then I noticed that
<[2008-03-22 Sat]
would work still, and nothing was lost during adjustment. Which finally
led to the discovery that
[2008-03-22 Sat]
also works if the formula is adjusted to
#+TBLFM: $2=now()-<$1>
Hope this helps others.
--
Chris Randle
Org-mode 6.02. Emacs 22.1.1. Windows XP.
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