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

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

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

On 12-11-21 5:20 PM, Matthew Baggott wrote: 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) How about as above (with

[R] 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

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

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

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

On Nov 20, 2012, at 19:45 , Jeff Newmiller wrote: a) I would advocate marking - as not recommended. Anyone who needs this reference probably should avoid this operator. Could we say not for beginners? I mean, it has legitimate uses. If we say not recommended, people will remember it as