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R语言安装所有扩展包 Install All Packages in CRAN

R语言 Jason 8months ago (03-29) 5次浏览 0个评论 扫描二维码
方案1:获取已安装列表,把CRAN上的包去掉列表然后全部安装
# get names of installed packages
packs <- installed.packages()
exc <- names(packs[,'Package'])
# get available package names
av <- names(available.packages()[,1])
# create loooong string
ins <- av[!av %in% exc]
install.packages(ins)

方案2:同上
availablePackages=available.packages()
availablePackages<-as.vector(availablePackages[,1])
installedPackages=.packages(all.available = TRUE)
missedPackages<-setdiff(availablePackages, installedPackages)
for (i in 1:length(missedPackages))
{
pkgName <- missedPackages[i]
install.packages(pkgName)
}
print("END")

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