[R] using conditionals to select rows in data.table

Martin Maechler maechler at stat.math.ethz.ch
Tue Nov 22 09:59:28 CET 2016

Dear Carl,

this came through fine, as text only
... but then I did not see any question anymore.

Best regards,
Martin Maechler
(R core and mailing list "operator")

>>>>> Carl Sutton via R-help <r-help at r-project.org>
>>>>>     on Tue, 22 Nov 2016 05:38:49 +0000 writes:

    > Hopefully the attached is text and not html.  I have not
    > found a text option in firefox.  I have also been informed
    > that a windows cut and paste is not truly text, which is
    > the reason for the attachment from notepad++

    > If there is any way I can improve the question, please
    > inform of the problem and I will do what I can to correct
    > it. Carl Sutton
    > ______________________________________________
    > R-help at 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.

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