我刚刚在我的LinuxMint18.1肉桂机上更新到R(3.4.1"单根蜡烛")，并试图安装一个软件包.R返回了以下内容:
> install.packages('ggplot2')
Installing package into ‘/usr/local/lib/R/site-library’
(as ‘lib’ is unspecified)
Warning in install.packages("ggplot2") :
'lib = "/usr/local/lib/R/site-library"' is not writable
Would you like to use a personal library instead? (y/n) y
Would you like to create a personal library
NA
to install packages into? (y/n) y
Error in install.packages("ggplot2") : unable to create ‘NA’
我以前遇到过"lib not writable"输出，但它通常提供如下解决方案:
Would you like to create a personal library
~/R/x86_64-pc-linux-gnu-library/3.4
to install packages into? (y/n) y
你知道为什么个人图书馆会建议NA吗？有没有办法手动覆盖这个？