From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Brand <michael.ch.brand@gmail.com>
Subject: Re: date calculation in org table
Date: Thu, 23 May 2013 10:24:28 +0200
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To: The Dude <rafal.kowalski@mac.com>
Cc: Org Mode <emacs-orgmode@gnu.org>

Hi Rafal

On Thu, May 23, 2013 at 8:43 AM, The Dude <rafal.kowalski@mac.com> wrote:

> The problem is that when I change the $sdate and recalculate the whole
> table with `C-u C-u C-c C-c' only the element @4$4 is set.  It seems
> like the column formula doesn't apply to the other fields.

This I consider a bug, minimal example:

| # | a | a |
|   | b |   |
#+TBLFM: $3 = $2

|   | a | a |
|   | b | b |
#+TBLFM: $3 = $2

> |   | WP | Days | Arrival Date     |
> |---+----+------+------------------|
> | # |    |      | <2013-06-05 Wed> |
> | ^ |    |      | sdate            |
> |---+----+------+------------------|
> |   |  1 |    4 | <2013-06-09 Sun> |
> |   |  - |    2 | <2013-06-11 Tue> |
> |   |  2 |    4 | <2013-06-15 Sat> |
> |   |  - |    2 | <2013-06-17 Mon> |
> |   |  3 |    1 | <2013-06-18 Tue> |
> |   |  4 |    2 | <2013-06-20 Thu> |
> |   |  5 |    1 | <2013-06-21 Fri> |
> |   |  - |    2 | <2013-06-23 Sun> |
> |   |  6 |    1 | <2013-06-24 Mon> |
> |   |  7 |    2 | <2013-06-26 Wed> |
> |   |  - |    1 | <2013-06-27 Thu> |
> |   |  8 |    1 | <2013-06-28 Fri> |
> |   |  9 |    1 | <2013-06-29 Sat> |
> |   |  - |    3 | <2013-07-02 Tue> |
> |   | 10 |    3 | <2013-07-05 Fri> |
> |   |  - |    1 | <2013-07-06 Sat> |
> |   | 11 |    2 | <2013-07-08 Mon> |
> |---+----+------+------------------|
> |   |    |   33 | <2013-07-08 Mon> |
> #+TBLFM: @4$4=$sdate + $3::$4=@-1$4+$3::@21$3=vsum(@II..@III)::@21$4=@III-1::$sdate=<2013-06-05 Wed>

Let me suggest one more variant. No row numbers, uses the fact that
the formula for $3 is not evaluated in the header and it circumvents
the bug:

|   | WP | Days | Arrival Date     |
|   |    |      | <2013-06-05 Wed> |
|---+----+------+------------------|
|   |  1 |    4 | <2013-06-09 Sun> |
|   |  - |    2 | <2013-06-11 Tue> |
|   |  2 |    4 | <2013-06-15 Sat> |
|   |  - |    2 | <2013-06-17 Mon> |
|   |  3 |    1 | <2013-06-18 Tue> |
|   |  4 |    2 | <2013-06-20 Thu> |
|   |  5 |    1 | <2013-06-21 Fri> |
|   |  - |    2 | <2013-06-23 Sun> |
|   |  6 |    1 | <2013-06-24 Mon> |
|   |  7 |    2 | <2013-06-26 Wed> |
|   |  - |    1 | <2013-06-27 Thu> |
|   |  8 |    1 | <2013-06-28 Fri> |
|   |  9 |    1 | <2013-06-29 Sat> |
|   |  - |    3 | <2013-07-02 Tue> |
|   | 10 |    3 | <2013-07-05 Fri> |
|   |  - |    1 | <2013-07-06 Sat> |
|   | 11 |    2 | <2013-07-08 Mon> |
|---+----+------+------------------|
|   |    |   33 | <2013-07-08 Mon> |
#+TBLFM: $4 = @-1 + $3 :: @>$3 = vsum(@I..@II) :: @>$4 = @-1

Michael