[Rd] install packages with missing pkg argument

[Ant F]

Indeed Hugh, apologies for the oversight, I've reported this to Rstudio, as
I believe it is problematic to get an irrelevant help file when calling
`?install.packages`.

https://github.com/rstudio/rstudio/issues/5154

Best regards,

Antoine

Le lun. 29 juil. 2019 à 13:59, Hugh Parsonage <hugh.parsonage using gmail.com> a
écrit :

> Are you running that command in RStudio? And do you get the documented
> results when you run utils::install.packages() rather than just
> install.packages()
>
> If yes, then the function is likely working as advertised and you've
> mixed up the R and RStudio versions
>
>
> On 29/07/2019, Ant F <antoine.fabri using gmail.com> wrote:
> > Dear all,
> >
> > The help for `?install.packages` decribes, in the `pkg` argument
> > description :
> >
> >> If this is missing, a listbox of available packages is presented where
> > possible in an interactive R session.
> >
> > In fact running it with a missing argument triggers an error :
> >
> > install.packages()
> >> Error in install.packages : argument "pkgs" is missing, with no default
> >
> > What however doesn't trigger an error is callinginstall.packages on a
> zero
> > length character :
> >
> > install.packages(character(0))
> >
> > On my colleague's R 3.5.1 windows installation it shows the listbox of
> > available packages, on my 3.6.0 installation it pauses for a couple
> seconds
> > and doesn't do anything.
> >
> > A character vector of length zero is what you get when you compute an
> empty
> > `setdiff` or `intersection`, so it was very surprising to us to see
> > something popup where we were expecting a vector of missing packages to
> be
> > installed (or none if there was no missing package).
> >
> > I believe having the function work as advertised with a proper missing
> > argument, and having it do nothing silently when the argument is of
> length
> > zero, would make more sense.
> >
> > Best regards,
> >
> > Antoine
> >
> >       [[alternative HTML version deleted]]
> >
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> >
>

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