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==================== Installing Rgraphviz ==================== Windows ======= Nov 17, 2008 Here are the steps to build Rgraphviz on Windows: o. install graphviz ***2.20.3*** Windows ***binary*** distribution from in a directory that we'll call $DIR. We use the following as an example: C:\Graphviz-2.21 If you install it in other dir, just use your dir correspondingly. o. set the following Windows environment variables accordingly (control panel -> systems -> Advanced -> Environment Variables ): (a) create new user variables: GRAPHVIZ_INSTALL_DIR (e.g., C:\Graphviz-2.21) GRAPHVIZ_INSTALL_MAJOR (e.g., 2) GRAPHVIZ_INSTALL_MINOR (e.g., 20) Notice the way "\/" are used for the paths above. (b) add to user variable 'path': $GRAPHVIZ_INSTALL_DIR/bin e.g., C:\Graphviz-2.21\bin o. run "R CMD INSTALL Rgraphviz" or "biocLite("Rgraphviz")' as usual OSX installation ================ according to Eric Wexler ( FYI: Rgraphviz will not load (at least under leopard) unless the user has the developer Xcode tools installed. It was very frustrating untill I figured this out. PLease pass it on in the Rgraphviz install under OSX instructions Source based installation ========================= The Rgraphviz package depends on the Graphviz library which can be obtained from At present, Rgraphviz is known to work with Graphviz versions greater than or equal to 2.2 (note however that a bug in the neato layout routine makes it preferable not to use versions 2.4, 2.6 and 2.8) To install Graphviz: 1. Download the source tarball from 2. Unpack the distribution (tar -xzvf) 3. Read the Graphviz installation instructions. Basically, you should be able to do: ./configure make make install A word of warning, especially on the Mac OS X platform: Rgraphviz may not work if Graphviz is compiled with optimization. For the most recent version of Graphviz, you will also need to make sure that pkg-config ( is installed on your system. If you install Graphviz to a non-standard location, you may need to set the PKG_CONFIG_PATH environment variable to tell pkg-config where the Graphviz metadata lives. Here is an example: export PKG_CONFIG_PATH=/home/me/graphviz/lib/pkgconfig At this point you should be able to install Rgraphviz either via R CMD INSTALL or by starting R and using install.packages. Note that older versions of Graphviz use a configure script called dotneato-config which must be in your PATH for Rgraphviz to find it. This is instead of the pkg-config setup.