The initialization sequence in R

Here are some of my notes based on a toe-dipping into R

Tips:

• use .libPaths() to get the path where the libraries are located:
  • > .libPaths()  –> this is in RGui
    [1] “C:/Users/agoswami/Documents/R/win-library/3.3”
    [2] “C:/Program Files/R/R-3.3.0/library”

 

• One can look for the Rprofile file like so:
  • $ find . -name ‘*Rprofile’ -type f 2>/dev/null
    ./Microsoft/MRO/R-3.2.5/library/base/R/Rprofile –> this is MRO (Microsoft R Open)
    ./Microsoft/MRO-for-RRE/8.0/R-3.2.2/library/base/R/Rprofile –> this is MRS (Microsoft R Server)
    ./Microsoft SQL Server/130/R_SERVER/library/base/R/Rprofile –> this is MRS (Microsoft R Server) through SQL install
    ./R/R-3.3.0/library/base/R/Rprofile  –> this is a regular R install

 

• To look at packages available, use the following:
  • https://www.r-bloggers.com/list-of-user-installed-r-packages-and-their-versions/

  • ip <- as.data.frame(installed.packages()[,c(1,3:4)])
    rownames(ip) <- NULL
    ip <- ip[is.na(ip$Priority),1:2,drop=FALSE]
    print(ip, row.names=FALSE)

  • this shows the difference in the packages between MRO, MRS and Base R

References:

• http://blog.revolutionanalytics.com/2015/11/r-projects.html
• http://stackoverflow.com/questions/15170399/changing-r-default-library-path-using-libpaths-in-rprofile-site-fails-to-work
• https://github.com/lixzhang/MLADS2016June