(This article was first published on Noam Ross - R, and kindly contributed to R-bloggers)
At Davis R Users’ Group yesteray, Steve Culman gave us an introduction to the plyr package and how to use it to manipulate data. Here’s his presentation, and the accompanying demonstration script:
Steve’s talk is based on this paper by Hadley Wickham in the Journal of Statistical Software. A lot of useful related resources are at Hadley Wickham’s plyr website.
We had a quick exchange about using plyr for parallel processing. More on that was discussed on the listserv here
To leave a comment for the author, please follow the link and comment on their blog: Noam Ross - R.
R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...