You could do bootstrapping for confidence intervals or permutation tests for just comparing the medians. There are other tools as well, just be sure that you understand what you are testing and what assumptions are being made in whatever method you choose.
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of Anna Lee > Sent: Thursday, March 31, 2011 3:15 AM > To: r-help@r-project.org > Subject: [R] statistical question > > 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.
