Function for loading and, if necessary, installing packages
Arguments
- packages
Character vector of packages to install from CRAN or GitHub
Value
Loads and, if necessary, first installs packages
Details
The function looks up required packages and loads the ones
already installed, while installing and loading for packages not installed.
For CRAN packages the package name is required as argument,
for GitHub username/repo are required as argument.
Examples
# \donttest{
depends("manypkgs")
#> [[1]]
#> [1] "manypkgs" "stats" "graphics" "grDevices" "utils" "datasets"
#> [7] "methods" "base"
#>
# }