In the documentation the closed thing I see to an explanation of this is
that ?detach says "Unloading some namespaces has undesirable side effects"
Can anyone explain why unloading tseries will load zoo? I don't think
this behavior is specific to tseries, it's just an example. I realize
one would not usually unload something that is not loaded, but I would
expect it to do nothing or give an error. I only discovered this when
trying to clean up to debug another problem.
R version 3.1.2 (2014-10-31) -- "Pumpkin Helmet"
and
R Under development (unstable) (2015-01-02 r67308) -- "Unsuffered
Consequences"
...
Type 'q()' to quit R.
> loadedNamespaces()
[1] "base" "datasets" "graphics" "grDevices" "methods" "stats"
[7] "utils"
> unloadNamespace("tseries") # loads zoo ?
> loadedNamespaces()
[1] "base" "datasets" "graphics" "grDevices" "grid"
"lattice"
[7] "methods" "quadprog" "stats" "utils" "zoo"
>
Somewhat related, is there an easy way to get back to a "clean" state
for loaded and attached things, as if R had just been started? I'm
trying to do this in a vignette so it is not easy to stop and restart R.
Paul
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