Читать книгу The Big R-Book - Philippe J. S. De Brouwer - Страница 163

Additional functions come in “packages.” To use them one needs to install the package first with the function install.packages(); this will connect to a server, download the functions and prepare them for use. Once installed on our computer, they can be loaded in the active environment with the function library() or require()

install.packages()

library()

require()