This means you need to install the Rgraphviz package. Have you tried? For me, Rgraphviz is not in CRAN, but it is required for that package you want.
Rgraphviz is hosted in biocondoctor, so you have to install it through that route. http://www.bioconductor.org/packages/release/bioc/html/Rgraphviz.html After that, you re-install the other package you really wanted. > library(pcalg) Loading required package: MASS Loading required package: graph Loading required package: robustbase Loading required package: Rgraphviz Loading required package: grid Loading required package: ggm Attaching package: 'ggm' The following object(s) are masked from package:graph : edgeMatrix Loading required package: mnormt On Tue, Jan 27, 2009 at 12:17 PM, Tibert, Brock <btib...@bentley.edu> wrote: > I can not even get the package to run. I installed the package, and it is > telling me I need rGraphViz. I was told to install it was included in the > Bioconductor package, but that did not work either. The error message I > routinely get is surrounding a "missing" RGraphViz package. I have searched > the internet, saw a place to install it. I attempted that as well, but to no > avail. > > I am stumped. Does it work for you? IF so, when did you install the package? > > Many thanks, > > Brock > > >>library(pcalg) > Loading required package: MASS > Loading required package: graph > Loading required package: robustbase > Loading required package: Rgraphviz > Error: package 'Rgraphviz' could not be loaded > In addition: Warning message: > In library(pkg, character.only = TRUE, logical.return = TRUE, lib.loc = > lib.loc) : > there is no package called 'Rgraphviz' > > -- Paul E. Johnson Professor, Political Science 1541 Lilac Lane, Room 504 University of Kansas ______________________________________________ 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.