On Wed, Feb 3, 2010 at 12:26 PM, Bert Gunter <gunter.ber...@gene.com> wrote: > RTFM (?unlist -- the "recursive" parameter) > and do it with a loop however many times you like.
How do you know that I didn't read the manual? I didn't quite get my question. Please see my response to Steve. > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf Of Peng Yu > Sent: Wednesday, February 03, 2010 10:20 AM > To: r-h...@stat.math.ethz.ch > Subject: [R] How to flatten a tree (based on list) to a certain depth? > > Suppose that I have the following list of lists of frames 'root' > (let's call it a 'tree' of frames). I want to flatten it to be a list > of frames. However, if I unlist(root), it will flatten the frames as > well. Is there a simply way to flatten the tree to certain depth? > > aframe1=data.frame(x=1:3,y=1:3) > aframe2=data.frame(u=7:9,v=11:13) > aframe3=data.frame(p=3:5,q=6:8) > > main1=list(sub1=aframe1, sub2=aframe2) > main2=list(sub3=aframe3) > > root=list(main1=main1, main2=main2) > > str(root) > unlist(root) > > ______________________________________________ > 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. > > ______________________________________________ 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.