Is the matrix the 1st or 2nd? Your description does not seem consistent. Here is one way to grab just the 2nd element from each sublist from a list:
lapply( mylist, '[[', 2 ) -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of Gregory Ryslik > Sent: Thursday, September 30, 2010 5:35 PM > To: R Help > Subject: [R] second element of a list > > Hi, > > I have a list of of n elements (where n is unknown beforehand). Each > element of the list has two subelements. The first is a matrix, the > second is a number. I want to make a list of just the matrices. > > I want to do something like mylists[[ ,2]] but that obviously doesn't > work. Is there a simple way to get around this? > > Thanks! > ______________________________________________ > 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.
