Re: [R] arrayInd and which

2013-04-05 Thread David Winsemius
On Apr 5, 2013, at 8:07 AM, R. Michael Weylandt wrote: > On Fri, Apr 5, 2013 at 2:08 PM, Keith S Weintraub wrote: >> And to the rest of you good R folks I would still be interested to see a >> working example of arrayInd, what it's supposed to do and what it's used for. > > A little utility fu

Re: [R] arrayInd and which

2013-04-05 Thread R. Michael Weylandt
On Fri, Apr 5, 2013 at 2:08 PM, Keith S Weintraub wrote: > And to the rest of you good R folks I would still be interested to see a > working example of arrayInd, what it's supposed to do and what it's used for. A little utility function for dealing with the matrix-is-really-a-vector indexing du

Re: [R] arrayInd and which

2013-04-05 Thread Keith S Weintraub
David, Thanks for your help and time. Your explanation was just what I needed. And to the rest of you good R folks I would still be interested to see a working example of arrayInd, what it's supposed to do and what it's used for. I have read the doc page a number of times and it's still not cl

Re: [R] arrayInd and which

2013-04-03 Thread David Winsemius
On Apr 3, 2013, at 10:59 AM, David Winsemius wrote: > > On Apr 3, 2013, at 7:53 AM, Keith S Weintraub wrote: > >> Folks, >> >> I have Googled but not found much regarding arrayInd aside from the "which" >> help page. >> >> Any good examples or docs on what arrayInd does that is better or dif

Re: [R] arrayInd and which

2013-04-03 Thread David Winsemius
On Apr 3, 2013, at 7:53 AM, Keith S Weintraub wrote: > Folks, > > I have Googled but not found much regarding arrayInd aside from the "which" > help page. > > Any good examples or docs on what arrayInd does that is better or different > from which()? > > In addition take the following 20x10

Re: [R] arrayInd and which

2013-04-03 Thread Adams, Jean
KW, I don't know anything about arrayInd, so I can't help with that question. In order to determine if there is a better way to do your comparison depends largely on what you want to do with the results. The way that you're doing it now seems fine to me, but I wonder what you want to use the ind

[R] arrayInd and which

2013-04-03 Thread Keith S Weintraub
Folks, I have Googled but not found much regarding arrayInd aside from the "which" help page. Any good examples or docs on what arrayInd does that is better or different from which()? In addition take the following 20x10 matrix: td<-structure(c(1, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 6, 6, 6,