更新R的方法

直接重新从官网上下载

R包的转移方法：

(''')

library(installr)

copy.packages.between.libraries(from = "F:\\R\\R-3.3.2\\library"

                    , to = "F:\\R\\R-3.5.0\\library"

                    , ask =T, keep_old = TRUE

                    , do_NOT_override_packages_in_new_R = TRUE)

(''')