![]() ![]() For computationally intensive work, it is sensible to monitor system resources in this way. Resource monitoring is the process of checking the status of key OS variables. ![]() On Debian-based operating systems such as Ubuntu, many R packages can be installed at the OS level, to ensure external dependencies are also installed (see Section 2.3.4). This is especially common with Unix-based systems (Linux and Mac). Sometimes external package dependencies must be installed manually (i.e. not using install.packages()). 2 Beyond the \(32\) vs \(64\) bit issue (covered in the next chapter) and process forking (covered in Chapter 7), another OS-related issue to consider is external dependencies: programs that R packages depend on. Minor differences aside, R’s computational efficiency is broadly the same across different operating systems. However, to help remember the key messages buried within the detail of this book, each chapter from now on contains a ‘top 5 tips’ section, after the pre-requisites.Ģ.2.1 Operating system and resource monitoring
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