R 101_安裝 and 安裝舊版既有套件

Step01.至 https://cran.r-project.org/

Step02.選擇Download R for Windows

Step03.選擇base

 Step04.點選 Download R X.X.X(版本) for Windows
 Step05.將舊版R套件安裝至新版

•  先進入舊版的 R，執行

oldPkgs = installed.packages()
oldPkgs = oldPkgs[,"Package"]
save(oldPkgs,file="d:/oldPkgs.Rdata")

• 進入新版 R 3.5.0，執行

# 扣除新版已經安裝的基本套件
pkgDiff = setdiff(oldPkgs,basePkg)
install.packages(pkgDiff)

oldPkgs = installed.packages()
oldPkgs = oldPkgs[,"Package"]
save(oldPkgs,file="d:/oldPkgs.Rdata")

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 Ref:台灣R軟體Club https://www.facebook.com/groups/1210634969026548/