[R] ref card for data manipulation?

[Vitalie Spinu]

On Thu, 11 Dec 2008 15:19:03 +0100, hadley wickham <h.wickham at gmail.com> 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.
>
> I like the idea, but is a reference card really enough?  To me, what
> most people need to tackle data manipulation problems is a broad
> strategy, not a list of useful functions. 

Absolutely agree. A list of useful strategies is an excellent idea :). A wiki page for discussion? May be  clipping some conceptual passages from your reshape and plyr documentation is a good start? And other "strategy" ideas will start flowing soon.

Vitalie.