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...nce tip: pre-allocate a vector, rather than extending it in a loop: http://bit.ly/ueKsMc A review of the new book "The Art of R Programming" by Norman Matloff: http://bit.ly/vTPZ8S R remains the preferred tool of participants in the Kaggle predictive modeling competitions: http://bit.ly/uN9DkL Other non-R-related stories in the past month included: data mining wine (http://bit.ly/ueyIF0 ), creating a "holodeck" with Kinect sensors (http://bit.ly/vv5pAV ), visualizing a year of the sky (http://bit.ly/rLv0zB ) and a radio series on Big Data (http://bit.ly/vSeCWm ). Meeting time...