从活动的R会话重新加载.Renviron或.Rprofile（不重启R）？

Question

When R starts (with default options), it loads the .Rprofile and .Renviron files in the working directory or user's home directory. In my case these files may be changed during the course of the R session (eg as packrat does). I was wondering if there is a way to ask R to simply refresh its .Renviron having to quit and restart R?

For instance, in the case of .Rprofile , it is sufficient to simply source(".Rprofile") to reload the .Rprofile from the working directory. Can something similar be managed for .Renviron ?

Answer 1

Use readRenviron Reference: http://stat.ethz.ch/R-manual/R-devel/library/base/html/readRenviron.html

Yes I remember getting stuck on Sys.getenv a while ago. and thanks to your question, it reminded me about packrat. Going to use it to distribute some code for a manuscript.