* calculating column averages
@ 2011-07-22 9:06 Jude DaShiell
2011-07-22 9:24 ` Rasmus
2011-07-22 21:48 ` Ken Williams
0 siblings, 2 replies; 3+ messages in thread
From: Jude DaShiell @ 2011-07-22 9:06 UTC (permalink / raw)
To: emacs-orgmode
In this case I don't want to tell org-mode how many rows to calculate, and
I put a table together with an averages line in its own footer section. I
prefer when doing these things to output final averages and totals just
under table headers then go down into detail records after that. Could
someone take a look at the following table and tell me how to get an
average on column 2 of this table?
Cut here.
| Date Stamp | Systalic | Diastalic | Pulse | | | | | | | |
|------------------------+------------------+-----------+-------+---+---+---+---+---+---+---|
| [2011-07-19 Tue 02:26] | 138 | 92 | 74 | | | | | | | |
| [2011-07-21 Thu 03:50] | 128 | 79 | 76 | | | | | | | |
| [2011-07-20 Wed 04:03] | 130 | 85 | 74 | | | | | | | |
| [2011-07-22 Fri 02:33] | 121 | 80 | 79 | | | | | | | |
| | | | | | | | | | | |
|------------------------+------------------+-----------+-------+---+---+---+---+---+---+---|
| Averages | $2=vmean(@<..@>) | | | | | | | | | |
| | | - | | | | | | | | |
| | | | | | | | | | | |
# Local Variables:
# kept-new-versions: 100
# version-control: t
# End:
-
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: calculating column averages
2011-07-22 9:06 calculating column averages Jude DaShiell
@ 2011-07-22 9:24 ` Rasmus
2011-07-22 21:48 ` Ken Williams
1 sibling, 0 replies; 3+ messages in thread
From: Rasmus @ 2011-07-22 9:24 UTC (permalink / raw)
To: emacs-orgmode
Jude DaShiell <jdashiel@shellworld.net> writes:
> In this case I don't want to tell org-mode how many rows to calculate, and
> I put a table together with an averages line in its own footer section. I
> prefer when doing these things to output final averages and totals just
> under table headers then go down into detail records after that. Could
> someone take a look at the following table and tell me how to get an
> average on column 2 of this table?
I am not sure I quite follow but this might be what you're after:
| Date Stamp | Systalic | Diastalic | Pulse |
|------------------------+----------+-----------+-------|
| [2011-07-19 Tue 02:26] | 138 | 92 | 74 |
| [2011-07-21 Thu 03:50] | 128 | 79 | 76 |
| [2011-07-20 Wed 04:03] | 130 | 85 | 74 |
| [2011-07-22 Fri 02:33] | 121 | 80 | 79 |
| | | | |
|------------------------+----------+-----------+-------|
| Averages | 129.25 | | |
#+TBLFM: @7$2=vmean(@2..@-1)
The field @7$2 calculates the average (vmean) from line 2 (@2) to the
line just above itself (@-1).
–Rasmus
--
Sent from my Emacs
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: calculating column averages
2011-07-22 9:06 calculating column averages Jude DaShiell
2011-07-22 9:24 ` Rasmus
@ 2011-07-22 21:48 ` Ken Williams
1 sibling, 0 replies; 3+ messages in thread
From: Ken Williams @ 2011-07-22 21:48 UTC (permalink / raw)
To: emacs-orgmode
Jude DaShiell <jdashiel <at> shellworld.net> writes:
>
> In this case I don't want to tell org-mode how many rows to calculate, and
> I put a table together with an averages line in its own footer section.
Since you have a header & footer, one solution is to use a formula like this:
:=vmean(@I..@II)
-Ken
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-07-22 9:06 calculating column averages Jude DaShiell
2011-07-22 9:24 ` Rasmus
2011-07-22 21:48 ` Ken Williams
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