The default rank test in the quantreg package would look like this summary(rq(y ~ d, tau = .5))
where d is a factor variable indicating which sample the elements of y belonged to. Summary returns a confidence interval for the coef of the factor variable -- if this interval excludes zero at the chosen alpha level then the difference in medians is "significant." Roger Koenker rkoen...@illinois.edu On Mar 31, 2011, at 4:15 AM, Anna Lee wrote: > Dear List! > > I want to compare medians of non normal distributed data. Is it > possible and usefull to calculate 95% confidence intervals for > medians? And if so - how can this be achieved in R? > > Thanks a lot! > Anna > > -- > > > > Der Inhalt dieser E-Mail ist vertraulich. Sollte Ihnen die E-Mail > irrtümlich zugesandt worden sein, bitte ich Sie, mich unverzüglich zu > benachrichtigen und die E-Mail zu löschen. > > This e-mail is confidential. If you have received it in error, please > notify me immediately and delete it from your system. > > ______________________________________________ > 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.
