What you need for this book
All the code examples provided in this book should be run in the R console, which needs to be installed on your computer. You can download the software for free and find the installation instructions for all major operating systems at http://r-project.org.
Although we will not cover advanced topics, such as how to use R in Integrated Development Environments (IDE), there are awesome plugins and extensions for Emacs, Eclipse, vi, and Notepad++, besides other editors. Also, we highly recommend that you try RStudio, which is a free and open source IDE dedicated to R, at https://www.rstudio.com/products/RStudio.
Besides a working R installation, we will also use some user-contributed R packages. These can easily be installed ...
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