R help - Nov 2012 - Updating Tom Short's R Reference Card, contacting him?

I made an update/reboot of Tom Short's classic and public domain "R
Reference Card".  His is from late 2004 and I've found myself giving it
to
new R users with additional notes about packages.

If anyone knows how to reach Tom, that would be great.  I am titling this
reboot "Short R Reference", in a play on his name, but I would like to
know
he wants his name (and/or email) on this version.

Also if anyone feels like providing corrections or comments, the release
candidate is here.  To view it in full resolution, you may need to download
it:

https://docs.google.com/open?id=0B8NgE2q8ITzTQnhPTFVjVXlOaHM

 regards,
m@

	[[alternative HTML version deleted]]

Some issues:

a) I would advocate marking "<<-" as "not
recommended". Anyone who needs this reference probably should avoid this
operator.

b) The $ operator does an approximate match with the name. [["name"]]
does an exact match.

c) Matrices are not data frames. Their indexing by the "[" operator is
very similar, but you cannot use list operators $ and [[ on matrices (at least
not to get the results you are suggesting).
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Jeff Newmiller                        The     .....       .....  Go Live...
DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live
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                                      Live:   OO#.. Dead: OO#..  Playing
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Sent from my phone. Please excuse my brevity.

Matthew Baggott <matthew.baggott at gmail.com> wrote:
>I made an update/reboot of Tom Short's classic and public domain "R
>Reference Card".  His is from late 2004 and I've found myself
giving it
>to
>new R users with additional notes about packages.
>
>If anyone knows how to reach Tom, that would be great.  I am titling
>this
>reboot "Short R Reference", in a play on his name, but I would
like to
>know
>he wants his name (and/or email) on this version.
>
>Also if anyone feels like providing corrections or comments, the
>release
>candidate is here.  To view it in full resolution, you may need to
>download
>it:
>
>https://docs.google.com/open?id=0B8NgE2q8ITzTQnhPTFVjVXlOaHM
>
> regards,
>m@
>
>	[[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list
>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.

I am uncertain about how to acknowledge the fact that $ can do partial
matching in the space of about 30 characters.  One option is this:

x[["name"]]       column named "name"
x$name           same as above (almost always)

Is that better or worse than ignoring this issue, or is there an even
better phrasing?

As per the other suggestions, I fixed the matrices indexing info,
pkg::foo() now has "not usually required"; and <<-  now is
explained
as "Left assignment in outer lexical scope; not for beginners"

Plus, I've been able to get in touch with Tom Short. :-)

Thanks to Jeff Newmiller,Dennis Murphy, and Peter Dalgaard for these
helpful suggestions and corrections!

regards,
m@