手动安装(离线安装)
Windows:下载package.zip文件打开R的菜单栏->Packages->“Install package from local zip file…”选择package.zip文件Linux上安装R包(离线安装):下载package.tar.gz文件在Shell终端(注意不是R)输入:sudo R CMD INSTALL package.tar.gz注意:需要sudo权限才能安装。否则提示:username is not in the sudoers file. This incident will be reported.查看全部安装的R包:.packages(all.available=T)查看某个安装的R包:library("XML")help(package="XML")