On Thu, 11 Dec 2008 15:19:03 +0100, hadley wickham <[EMAIL PROTECTED]> 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.
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