> 1) What are your 3 most useful R package?
On the assumption that we mean those packages that add some generic functionality, then plyr ggplot2 Car and Hmisc (i know that is four) So similar to others peoples list I have others that are always first to be installed, but specific to my interests e.g. vegan. Not sure about the other question Graham ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.