Nothing
if (interactive() || is.na(Sys.getenv('NOT_CRAN', unset = NA)) ) {
# Chapter 20 - Ten Tips on Working with Packages
## Poking Around the Nooks and Crannies of CRAN
options("repos" = c(CRAN = "https://cran.ma.imperial.ac.uk/"))
## Finding Interesting Packages
## Installing Packages
\dontrun{
install.packages("fortunes")
}
## Loading Packages
library("fortunes")
## Reading the Package Manual and Vignette
library(help=fortunes)
\dontrun{
vignette("fortunes")
}
## Updating Packages
\dontrun{
update.packages()
}
## Unloading Packages
search()
detach(package:fortunes, unload=TRUE)
## Forging Ahead with R-Forge
\dontrun{
install.packages("data.table", repos="https://R-Forge.R-project.org")
}
## Conducting Installations from BioConductor
\dontrun{
source("https://bioconductor.org/biocLite.R")
}
## Reading the R Manual
}
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