I have two .Renviron files: one in my home directory, one in the
current directory. From my reading of ?Startup, I thought the local one
would override the home dir one, and if I set a value, it does.
However, if the local .Renviron contains
RGL_DEBUGGING=
while the home one contains
RGL_DEBUGGING=true
I see that the env var is set to "true" when I start R. I need to set
the local one to
RGL_DEBUGGING=""
to set a zero-length value. Is this expected?
Duncan Murdoch
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