Message-ID: <f8e6ff051001181143r1579dbfbq5f2171ab9069ee63@mail.gmail.com>
Date: 2010-01-18T19:43:40Z
From: Hadley Wickham
Subject: Help using Cast (Text) Version
In-Reply-To: <0A8B3D22-AF06-48DD-BBAF-8902F086DF97@comcast.net>
>> If you can point me towards a doc that explains this in simple terms I
>> would be obliged. Don't expect you to have to provide the answer.
>
> Any of the introductory texts should explain the various forms of indexing
> and the use of the apply family of functions. They are both central to
> effective R programming.
See also the plyr package, http://had.co.nz/plyr, which tries to
provide a more uniform interface to the apply family of functions.
I've also tried to document everything in one place, so hopefully it's
a bit easier to learn and to see how all the different functions fit
together.
Hadley
--
http://had.co.nz/