Expert R users, what's in your .Rprofile? [closed]

Answer 1

I have an environment variable R_USER_WORKSPACE which points to the top directory of my packages. In .Rprofile I define a function devlib which sets the working directory (so that data() works) and sources all .R files in the R subdirectory. It is quite similar to Hadley's l() function above.

devlib <- function(pkg) {
  setwd(file.path(Sys.getenv("R_USER_WORKSPACE", "."), deparse(substitute(pkg)), "dev"))
  sapply(list.files("R", pattern=".r$", ignore.case=TRUE, full.names=TRUE), source)
  invisible(NULL)
}

.First <- function() {
  setwd(Sys.getenv("R_USER_WORKSPACE", "."))
  options("repos" = c(CRAN = "http://mirrors.softliste.de/cran/", CRANextra="http://www.stats.ox.ac.uk/pub/RWin"))
}

.Last <- function() update.packages(ask="graphics")