Nothing got through. You need to send everything in text format.
John Kane
Kingston ON Canada
> -----Original Message-----
> From: 98samir at gmail.com
> Sent: Thu, 14 Feb 2013 15:04:24 -0500
> To: r-help at r-project.org
> Subject: [R] stratified analysis
>
> I am having trouble doing a stratified analysis while obtaining the
> mean,median, and standard deviation of each group. I have copied and
> pasted
> the console below.
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at 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.
____________________________________________________________
FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your
desktop!