Install Packages with Checks

Check Package Installation Status and Install If Missing Upon Request

InstallPackagesIfNotAlready(
  pkgs,
  install_if_not = TRUE,
  return_status = FALSE,
  verbose = FALSE
)

Arguments

pkgs	(character vector) names of packages to check installation status.
install_if_not	(logical) whether to install missing packages or not.
return_status	(logical) whether to return package installation status or not.
verbose	(logical) whether to print package installation status or not.

Value

if install_if_not is TRUE, then return a data.frame consisting of the installation status. The data.frame has two columns: "Before" and "After" indicating the status before and after the function InstallPackagesIfNotAlready is executed. Further, its rows are named after the packages names as specified in pkgs.

Examples

if (FALSE) {
InstallPackagesIfNotAlready(
  pkgs = c("MASS", "knitr"),
  install_if_not = TRUE,
  return_status = FALSE,
  verbose = FALSE
)
}