Message-ID: <61291DB5-490C-430D-9D2E-2557D91F3296@exeter.ac.uk>
Date: 2008-12-11T13:49:14Z
From: Baptiste Auguie
Subject: ref card for data manipulation?
In-Reply-To: <op.ulzz1sivw9ljuw@tir-070312.staff.few.eur.nl>
Hi,
Good idea, what do you say we try and write a page on this in the R
wiki?
I started the topic:
http://wiki.r-project.org/rwiki/doku.php?id=guides:overview-data-manip
Once the content is there, it wouldn't be much of an effort to create
a reference-card format if required.
Best wishes,
baptiste
On 11 Dec 2008, at 12:38, Vitalie Spinu wrote:
> On Wed, 10 Dec 2008 18:29:43 +0100, Peter Dalgaard <P.Dalgaard at biostat.ku.dk
> > wrote:
>
>>
>> You (as many before you) have overlooked the ave() function, which
>> can
>> replace the ordering as well the do.call(c,tapply(....))
>>
>
> Majority of questions on this list concern data manipulation. Many
> are repetitive. "Overlooking" like that will always happen unless
> some comprehensive data manipulation documentation is made.
> I think many people would benefit if a specialized data.manip
> ref.card were conceived.
>
> Tom Short's card is an excellent one but it does not cover high
> level packages like plyr, reshape, DoBy, and a few base data.manip
> functions are not there as well.
>
> Vitalie.
>
_____________________________
Baptiste Augui?
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag