The lmsqreg package is by Vince Carey and is available from his website. There is an independent package with fortran routines from Tim Cole. Both packages implement the LMS method of Cole and Green. You might also want to consider alternative methods: an approach based on nonparametric quantile regression is described in:
http://www.ncbi.nlm.nih.gov/sites/entrez? cmd=Retrieve&db=PubMed&list_uids=16143984&dopt=AbstractPlus Some comparison with the LMS method are reported there. url: www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox: 217-333-4558 University of Illinois fax: 217-244-6678 Champaign, IL 61820 On Nov 8, 2007, at 10:16 AM, Niels Steen Krogh wrote: > We are constructing growth charts (age/weight and age/length) for > children > with diagnosis that impacts weight/length. > > But we we don't know how to use R for producing growth charts. > > We are collection data of Age, Weight and Length. > The data are used to produce diagnosis-specific Growth charts (like > the CDC > Growth Charts: > http://www.cdc.gov/nchs/data/nhanes/growthcharts/set1clinical/ > cj41l017.pdf) > > Data-example is in the UsingR package as data(kid.weights). > > In the CDC-papers a LMS approch is described. Cole has programmed the > methology (I guess) in a <R 2.0.0 package called lmsqreg: > """ >> library(lmsqreg) > Error in library(lmsqreg) : > lmsqreg' is not a valid package -- installed < 2.0.0?) > """ > > Where to go forward in R. > Thanks for any "hints". > We are using R2.6.0 on win/linux > > /Niels > > > > Niels Steen Krogh > Konsulent > ZiteLab ApS > > Mail: ---------- [EMAIL PROTECTED] > Telefon: ------- +45 38 88 86 13 > Mobil: --------- +45 22 67 37 38 > Adresse: ------- ZiteLab ApS > ---------------- Solsortvej 44 > ---------------- dk - 2000 F. > --- og --- > ---------------- ZiteLab ApS > ---------------- Refshalevej 110a > ---------------- dk - 1432 københavn k > > Web: ----------- www.zitelab.dk > CVR: ----------- 29178364 > Bank: ---------- Sparbank Vest > > Ejer: ---------- ZSRK Group Holding > > ______________________________________________ > 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.
