Welcome to mcaGUI! Currently mcaGUI can be installed on multiple operating systems (OS). This section discusses how to install mcaGUI on Windows OS, Machintosh OS and the Ubuntu distribution of Linux. A. WINDOWS AND UBUNTU LINUX INSTALLATION INSTRUCTIONS 1. Download and install the most recent version of R for the Windows OS at http://www.r-project.org/ (at the time of writing R-2.12.0). 2. Download and install GTK from http://downloads.sourceforge.net/gtk-win/gtk2-runtime-2.22.0-2010-10-21-ash.exe. 3. Open the R program on your computer and type: source("http://bioconductor.org/biocLite.R") biocLite("mcaGUI") B. MACHINTOSH OSX INSTALLATION INSTRUCTIONS 1. Download and install the most recent version of R for the Macintosh OS at http://www.r-project.org/ (at the time of writing R-2.12.0). 2. Open the R program on your computer. 3. Download and install GTK from http://r.research.att.com/libs/GTK_2.18.5-X11.pkg. 4. Open the most recent version of R (at the time of writing R-2.12.0) 5. Back in the R window type: source("http://bioconductor.org/biocLite.R") biocLite("mcaGUI") C. INSTALL INSTRUCTIONS FOR "mcaGUI" R-PACKAGE UPDATES 1. Open the most recent version of R (at the time of writing R-2.12.0) 2. In the R command window type: source("http://bioconductor.org/biocLite.R") biocLite("mcaGUI")