[R] object(s) are masked from package - what does it mean?

[Peter Dalgaard]

"tom soyer" <tom.soyer at gmail.com> writes:

> Thanks Marc and Gregor for the detailed explanation. You are right, the
> masking is potentially dangerous. Since R is object oriented, I am surprised
> that this is an issue. Does this mean that encapsulation does not exist in
> R?

R does have namespaces, but you can't have your cake and eat it too:
If your attached data frame contains a variable "airquality", then you
can't both access that one and the same-named example dataset as just
"airquality" (datasets::airquality still works).

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