Calling C code from R, an introduction
R Grapics using the Grid Package
Inspecting R package documentation
Building R packages from source code under Windows
Calling C code from R, an introductionThe functions .C and .Call. provide a standard interface to compiled code that has been linked into R. These functions are explored in the following presentation.
R Graphics using the Grid PackageThe grid package provides a low-level graphics system to produce reusable, editable graphical components.
snow SimplifiedThe 'snow' package provides a high-level interface for using a workstation cluster for parallel computations in R. Here is a friendly user guide.
Inspecting R package documentation(no need to check if all function arguments are documented or if a command below works -
help(package=myPackge) # display package DESCRIPTION file # and list all functions and data sets in myPackage help(function) # display man/function.Rd file example(function) # run example in man/function.Rd demo(package="myPackge") # list demos in package/demo demo(demo_file) # run demo/demo_file.R data(package="myPackge") # list data files in package/data help(data) # display man/data.Rd data(data) # run data/data.R
Building R packages from source code under WindowsChoose a CRAN mirror near you, and follow the "Download R for Windows" link to "Rtools".