On Mar 17, 2010, at 11:39 PM, Bernt Hansen wrote:
Josh Mattoon <joshmatt...@gmail.com> writes:
Hey Nick, the first one came through just fine. This is pretty cool
but still not quite what I'm looking for. It totally helped me get
what I wanted though! I wanted to have a separate row for each day
so I could fill in activities. Modifying your example I get:
| date | place | activity |
notes |
|------------------+---------+---------------------------
+------------------|
| <2010-03-19 Fri> | | |
dummy |
| <2010-03-20 Sat> | |
| |
| <2010-03-21 Sun> | moon | collect rocks
| |
| <2010-03-22 Mon> | jupiter | thrash around the red dot
| |
| <2010-03-23 Tue> | mars | see the little green men
| |
| <2010-03-24 Wed> | earth | | home,
sweet home |
#+TBLFM: @2$1 = <03-19-2010>::$1 = @-1$1 + 1
Exactly what I wanted! I can insert days, move them around, and
just hit C-u C-c C-c to have it update. I'd like to understand how
it works though, if you don't mind. What does the ::$1 synax
mean? And
how did it know that we were dealing with a date?
As I understand it
This is a formula line with 2 formulas in it. The formulas are
separated by the ::
@2$1 = <03-19-2010> sets the cell at row 2, column 1 to Mar 19, 2010
Then the next formula just calculates all of the values for column 1
leaving the static entry previously defined alone.
$1 = @-1$1 + 1 column 1 entries are the previous row for column 1
plus 1
so it just adds 1 to the initial value of the date for each following
row in your table.
And the magic is that calc understands date and knows how to do
arithmetic with them.
- Carsten
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