[R] statistical question

[Greg Snow]

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.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Anna Lee
> Sent: Thursday, March 31, 2011 3:15 AM
> To: r-help at 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
> 
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