[R] smoothScatter() and the KernSmooth package

[Martin Maechler]

>>>>> Duncan Murdoch 
>>>>>     on Fri, 19 Jun 2020 10:14:19 -0400 writes:

    > On 19/06/2020 9:59 a.m., Jeffrey Dick wrote:
    >> Hi Witold,
    >> 
    >> See also this thread on R-pkg-devel. Quoting Duncan Murdoch, "That
    >> looks like a bug in grDevices."

    > Yes, and the bug is still there:  grDevices:::.smoothScatterCalcDensity 
    > calls KernSmooth::bkde2D without checking whether KernSmooth is available.

    > Duncan Murdoch

    >> https://stat.ethz.ch/pipermail/r-package-devel/2019q3/004287.html

Thank you, Duncan.

I'm taking care of this now -- but just for R-devel, not the
upcoming 4.0.2

Martin

    >> Cheers,
    >> Jeff

    >> On Wed, Jun 17, 2020 at 4:59 PM Witold E Wolski <wewolski using gmail.com> wrote:
    >>> 
    >>> Hello,
    >>> 
    >>> I am getting the following error when running a package check
    >>> ```
    >>> Error in loadNamespace(name) : there is no package called 'KernSmooth'
    >>> Calls: <Anonymous> ... loadNamespace -> withRestarts ->
    >>> withOneRestart -> doWithOneRestart
    >>> Execution halted
    >>> ```
    >>> 
    >>> The error happens in a function which calls graphics::smoothScatter
    >>> 
    >>> I found this e-mail on the r-devel list where this problem is also reported.
    >>> https://stat.ethz.ch/pipermail/r-devel/2015-February/070671.html
    >>> 
    >>> So I could add KernSmooth to Suggest in the DESCRIPTION but I have a
    >>> few questions:
    >>> (and I am citing from the e-mail above to which I could not find a reply):
    >>> 
    >>> "I have a few questions: isn't it unusual the way smoothScatter calls
    >>> 
    >>> grDevices:::.smoothScatterCalcDensity() and KernSmooth::bkde2D(),
    >>> i.e., without requiring the packages?
    >>> Shouldn't "graphics" suggest "KernSmooth"?
    >>> "
    >>> 
    >>> best regards
    >>> Witek
    >>> 
    >>> 
    >>> 
    >>> 
    >>> --
    >>> Witold Eryk Wolski
    >>> 
    >>> ______________________________________________
    >>> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
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    >>> and provide commented, minimal, self-contained, reproducible code.
    >> 
    >> ______________________________________________
    >> R-help using r-project.org 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.
    >> 

    > ______________________________________________
    > R-help using r-project.org 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.