On Aug 22, 2013, at 9:23 AM, Garkuwa, Nuru Adamu wrote: > I used the codes below trying to fit a model at .95 c.i. of size relationship > but it fails. > > library(quantreg) > range(len$length) # [1] 28 98 > range(len$preyl) > x<-rq(len$preyl~len$length,tau=0.95) > plot(x, type="b", xlab="length (cm)",ylab="preyl (cm)",ylim=c(5,35), > xlim=c(10,100), data=len) >
Try: plot(preyl~length, data=len) lines(28:98, predict(x, newdata=list(length=28:98)) ) -- David Winsemius Alameda, CA, USA ______________________________________________ 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.
