[R] Updating Tom Short's R Reference Card, contacting him?

[Matthew Baggott]

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@