Great one! Thanks this will simplify a lot addresing. Best REgards
________________________________ From: Keith Jewell <k.jew...@campden.co.uk> To: r-h...@stat.math.ethz.ch Sent: Wed, September 22, 2010 1:25:27 PM Subject: Re: [R] efficient list indexing Also, it may be that you want bigfred to be a list of 5 lists each of 2 elements (happy and name) rather than a list of 10 elements. Thus (also using double bracketing) fred<- list(happy = 1:10, name = "squash") bigfred <- replicate(5, fred, FALSE) bigfred[[2]][[2]] hth Keith J "Patrick Burns" <pbu...@pburns.seanet.com> wrote in message news:4c99e118.2010...@pburns.seanet.com... > I'm confused by what you are looking for. > There's some slight possibility that you > are looking for double bracket subscripting > with a vector: > > > list(a=1:5, b=letters)[[c(2,4)]] > [1] "d" > > > On 22/09/2010 10:58, Alaios wrote: >> Hello everyone, >> >> I need some help with lists inside lists (a good way to emulate a >> struct)\ >> >> Assume that there is a small list called fred: >> fred<- list(happy = 1:10, name = "squash") >> >> >> and a big list called bigfred that includes fred list 5 times >> bigfred<- rep(fred,5) >> >> Is it possible somehow to index all these sublists(fred) inside bigfred >> with a >> more direct way like this: >> bigfred[1] shows the first sublist fred >> bigfred[2][2] shows the second sublist fred, the second element of the >> fred list >> >> So far I found some way to do this by refering to the sublists by the >> following: >> bigfred[1+index*length(fred)] >> where index shows the beginning of a sublist. >> >> I would like to thank you in advance for your help >> Best Regards >> Alex >> >> >> >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> 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. >> > > -- > Patrick Burns > pbu...@pburns.seanet.com > http://www.burns-stat.com > (home of 'Some hints for the R beginner' > and 'The R Inferno') > ______________________________________________ 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. [[alternative HTML version deleted]] ______________________________________________ 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.
