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Re: [Orgmode] noob question : In a table , how to update a formula when
From: |
Nick Dokos |
Subject: |
Re: [Orgmode] noob question : In a table , how to update a formula when inserting a new line |
Date: |
Fri, 07 May 2010 22:56:49 -0400 |
Matt Chastagnier <address@hidden> wrote:
> I've just started with org-mode and have done several tutorials. But I'm
> stuck with this problem for 3 hours :
>
>
> I have :
>
> | item | quantity |
> |---------+----------|
> | laptop | 4 |
> | desktop | 7 |
> |---------+----------|
> | Total | 11 |
>
> #+TBLFM: @4$2=vsum(@address@hidden)
>
> I insert a new line [because I will want to add a new item] (M-S down) and
> update the table (C-u C-c C-c) :
>
> | item | quantity |
> |---------+----------|
> | laptop | 4 |
> | desktop | 7 |
> | | 11 |
> |---------+----------|
> | Total | 11 |
>
> #+TBLFM: @4$2=vsum(@address@hidden)
>
> but my formula isn't updated automatically so the wrong field is updated. I
> would like the formula to become @5$2 instead of @4$2 automatically.
> I've searched during 2 hours with google but found nothing :/ ... Is it
> possible to do it? Cause It's very annoying to update the formula "by hand"
> (sorry for my english).
>
You looked in the wrong place :-) If you look in section 3.5.1,
"References", in the Org manual, you'll find
,----
| As a special case, references like `$LR5' and `$LR12' can be used to
| refer in a stable way to the 5th and 12th field in the last row of the
| table.
`----
So make your formula
#+TBLFM: $LR2=vsum(@address@hidden)
HTH,
Nick