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May 11, 2011


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Definitely some essential commands in the list, but also a fair number that are rather unusual. Hyperbolic trig functions, and "birthday" for example, are hard to imagine as "essential".

@Kevin: Agreed that there are some oddities, but the page is a wiki, so you can always edit it if you feel strongly about something.

I've just added a few words that I thought were missing (repeat, nlevels, class, is and as).

These kinds of posts are really helpful. As R is so expansive, I generally get 'stuck' into ways of doing things that, if I had known better, could be done very simply with pre-existing functions.

Great List!

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