At 15:16 07/06/2008, Carl Witthoft wrote:
Hi,
I'm relatively new to R, so I don't know the full list of base (or
popular add-on packages) functions and tools available. For
example, I tripped across mention of rle() in a message about some
other problem. rle() turned out to be a handy shortcut to splitting
some of my data by magnitude (vaguely like a sequence-based histogram).
So I thought I'd ask: what small, or obscure, tools and functions in
R do you find handy or 'cool' to use in your work?
In a similar vein to your comment about rle (which I found in the
same way as you and for which I would never have thought of looking)
perhaps I could suggest str()? I picked this up by reading R-help.
When R's behaviour is unexpected (to you) using
str(your_dataframe)
often reveals why.
And for a bonus
1 - if the function has a data= parameter then always use it
2 - use with() rather than attaching and detaching things
These have saved me hours.
Thanks
Carl
Michael Dewey
http://www.aghmed.fsnet.co.uk
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