You are not generating lists, you are generating vectors. Try
rep( seq.int( n ), each= 4 ) --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. On April 19, 2015 6:44:56 AM PDT, John Sorkin <jsor...@grecc.umaryland.edu> wrote: >Windows 7 64-bit >R 3.1.3 >RStudio 0.98.1103 > > >I am trying to generate a list of length 4n which consists of the >integers 1 to n repeated in groups of four, i.e. > >1,1,1,1, 2,2,2,2, 3,3,3,3, . . . . , n,n,n,n > >(The spaces in the list are added only for clarity.) > >I can generate the list as follows, but the code must be modified for >any value n, and the code is UGLY! > >c(rep(1,4), rep(2,4), rep(3,4), . . . ,c(n,4)) > >Can anyone help me? > >Thank you, >John > >John David Sorkin M.D., Ph.D. >Professor of Medicine >Chief, Biostatistics and Informatics >University of Maryland School of Medicine Division of Gerontology and >Geriatric Medicine >Baltimore VA Medical Center >10 North Greene Street >GRECC (BT/18/GR) >Baltimore, MD 21201-1524 >(Phone) 410-605-7119410-605-7119 >(Fax) 410-605-7913 (Please call phone number above prior to faxing) > > >Call >Send SMS >Add to Skype >You'll need Skype CreditFree via Skype > >John David Sorkin M.D., Ph.D. >Professor of Medicine >Chief, Biostatistics and Informatics >University of Maryland School of Medicine Division of Gerontology and >Geriatric Medicine >Baltimore VA Medical Center >10 North Greene Street >GRECC (BT/18/GR) >Baltimore, MD 21201-1524 >(Phone) 410-605-7119410-605-7119 >(Fax) 410-605-7913 (Please call phone number above prior to faxing) > > > > >John David Sorkin M.D., Ph.D. >Professor of Medicine >Chief, Biostatistics and Informatics >University of Maryland School of Medicine Division of Gerontology and >Geriatric Medicine >Baltimore VA Medical Center >10 North Greene Street >GRECC (BT/18/GR) >Baltimore, MD 21201-1524 >(Phone) 410-605-7119 >(Fax) 410-605-7913 (Please call phone number above prior to faxing) > > >Confidentiality Statement: >This email message, including any attachments, is for t...{{dropped:12}} ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.