Please disregard my previous post. My understanding is correct, and the behavior is **AS DOCUMENTED**. I failed to read the docs carefully. Mea Culpa.
Best, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sun, Dec 13, 2020 at 8:32 PM Bert Gunter <[email protected]> wrote: > I would appreciate any help in correcting my misunderstanding of the > following: > > > substitute(quote(x+a), env = list(a=5)) > quote(x + 5) ## as expected > > substitute(quote(x+a), env = list2env(list(a=5))) > quote(x + 5) ## as expected > > > ### BUT > > .GlobalEnv$a > [1] 5 > > substitute(quote(x+a), env = .GlobalEnv) > quote(x + a) ## unexpected > > I conclude from this that there is something special about .GlobalEnv that > does not allow it to behave as documented for the env argument in > ?substitute, to wit: > > "env: > > an environment or a list object. Defaults to the current evaluation > environment." > > I would be grateful for any insight, as I am clearly missing something. > > > Note: (though I don't think this matters): > > > sessionInfo() > R version 4.0.3 (2020-10-10) > Platform: x86_64-apple-darwin17.0 (64-bit) > Running under: macOS Big Sur 10.16 > > > Cheers to all, > > Bert > > Bert Gunter > > "The trouble with having an open mind is that people keep coming along and > sticking things into it." > -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) > [[alternative HTML version deleted]] ______________________________________________ [email protected] mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
