Hi B, What you need to do is pass a vector with the indices you want to extract. So, you have 1:7 (which expands to 1, 2, 3, ... 7) and 12:34 (which again expands). How would you combine two sets of numbers? c(), the combine or concatenate function. Putting this in action:
mya <- array(1:510, dim = c(34, 5, 3)) mya[c(1:7, 12:34), , ] Do note that the row numbers will update unless they were explicitly named. So they will be numbered 1:30, not 1:7 and 12:34. Cheers, Josh On Sun, Nov 28, 2010 at 6:36 PM, bfhancock <brianfhanc...@gmail.com> wrote: > > Hi! I am learning R and have a question that is probably fairly simple for > those of you much more learned than I. > > I am messing with Arrays and am doing some simple stuff to get the hang of > them. I will have a seperate array already pulled up and it will have > columns and rows. I figured out that I can seperate these out with commands > like "array_name"[,1,1]. Now, I have an array where I want to make a single > array from a two ranges in the original array. from 1:7 and 12:34. I know > if i just did it with 1:7 it is just "array_name"[1:7,,] and that is it. > But i wanted 12:34 in there as well. I assumed at first that it would just > be "array_name"[1:7 & 12:34,,] but was wrong. Can anyone help me with this? > Thanks so much! > > -B > -- > View this message in context: > http://r.789695.n4.nabble.com/Array-help-tp3062992p3062992.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@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. > -- Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles http://www.joshuawiley.com/ ______________________________________________ R-help@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.
