Lianne, "graph" can be found here:
http://bioconductor.org/packages/2.12/bioc/ You will need to read the bioconductor instructions. If you visit the R Project CRAN site, you can find packages there. Each package will have an associated description and a list of "depends" which are other packages a specific R package depends upon. The items on the list are color coded by source. JWDougherty ______________________________________________ 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.