Load or install multiple R packages — LoadPackages • IASDT.R

This function attempts to load multiple R packages specified by the user. If a package is not installed, the function can optionally install it before loading. It also provides an option to print the names and versions of the loaded packages.

Usage

LoadPackages(..., List = NULL, Verbose = FALSE, InstallMissing = TRUE)

Arguments

...: Character. Names of the packages to be loaded or installed.
List: Character vector. An alternative or additional way to specify package names as a vector.
Verbose: Logical. If TRUE, prints the names and versions of the loaded packages. Defaults to FALSE.
InstallMissing: Logical. If TRUE (default), missing packages are automatically installed and then loaded.

Value

This function is used for its side effects (loading/installing packages) and does not return any value.

Author

Ahmed El-Gabbas

Examples

# Currently loaded packages
(P1 <- IASDT.R::LoadedPackages())
#>  [1] "ggplot2"   "sf"        "car"       "carData"   "dplyr"     "Hmsc"     
#>  [7] "coda"      "rworldmap" "raster"    "sp"        "png"       "IASDT.R"  
#> [13] "magrittr"  "stats"     "graphics"  "grDevices" "utils"     "datasets" 
#> [19] "methods"   "base"     

LoadPackages(Hmsc)
# Loaded packages after implementing the function
(P2 <- IASDT.R::LoadedPackages())
#>  [1] "ggplot2"   "sf"        "car"       "carData"   "dplyr"     "Hmsc"     
#>  [7] "coda"      "rworldmap" "raster"    "sp"        "png"       "IASDT.R"  
#> [13] "magrittr"  "stats"     "graphics"  "grDevices" "utils"     "datasets" 
#> [19] "methods"   "base"     

# Which packages were loaded?
setdiff(P2, P1)
#> character(0)

LoadPackages(terra, Verbose = TRUE)
#> 
#> The following packages were loaded:
#>   >>>>>  terra: 1.8-29