hash-2.0.0
Come see my talk on hashes in R at useR! 2010. (http://user2010.org/)
July 20-23
National Institute of Standards and Technology (NIST),
Gaithersburg, Maryland, USA [Read more...]
Articles by Christopher Brown
R : NA vs. NULL
The R language has two closely related NULL-like values, NA and NULL ... Both are used to represent missing or undefined values. This has lead to much confusion. [Read more...]
hash-1.99.x
hash-2.0.0 has been released please read about it here:
Earlier today, hash-1.99.x was released to CRAN. This is a stable release and adds some more functions to an already full-featured hash implementation. This version fixes some bugs, adds some features, improves performance and stability. You can read about the ... [Read more...]
[, [[, $: R accessors explained
For more than ten years, I have been teaching R both formally and informally. One thing that I find often trips up students is the use of R’s accessors and mutators. ( For those readers not from a formal computer science background, an accessor is a method for accessing data ...
R: The Dummies Package
R-2.9.2 was released in August. While R can be considered stable and battle-ready, it is also far from stagnation. It is humbling to see such an intelligent and vibrant community helping CRAN grow faster than ever. Every day I see a new package or read a new comment on R-Help [...] [Read more...]
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