[R] sleep data

[Charles C. Berry]

A further note. The Cushny & Peebles article can be viewed here:

 	http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1465734

and the page with the data is here:

 	http://www.pubmedcentral.nih.gov/pagerender.fcgi?artid=1465734&pageindex=9

A machine readable version of the data is at:

 	https://biostat.ucsd.edu/~cberry/t-test/sleep.dat

The version published in Student's Biometrika article has a typographical 
error, but it is evident that Student's computations were unaffected.

Chuck Berry

On Wed, 17 Jan 2007, Charles C. Berry wrote:

>
> Yes, you refer to
>
> 	 Cushny, A. R. and Peebles, A. R. The action of optical isomers: II
> 	 hyoscines. The Journal of Physiology, 1905, 32: 501.510.
>
> which was used by 'Student' to illustrate the paired t-test.
>
> This is indeed a crossover design.
>
> On Wed, 17 Jan 2007, Tom Backer Johnsen wrote:
>
>>  When reading the documentation for the "sleep" data set in R, the
>>  impression is clear, this is an "independent groups" kind of design
>>  (two groups of 10 subjects each).  However, when browsing the original
>>  article (referred to in the help file), my impression is quite clear,
>>  this is really a "repeated measures" kind of data (one group of 10
>>  subjects, two observations).  What is correct?
>>
>>  Tom
>>
>>  ______________________________________________
>>  R-help at stat.math.ethz.ch 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.
>> 
>
> Charles C. Berry                        (858) 534-2098
>                                         Dept of Family/Preventive Medicine
> E mailto:cberry at tajo.ucsd.edu	         UC San Diego
> http://biostat.ucsd.edu/~cberry/         La Jolla, San Diego 92093-0901
>
>
>
>

Charles C. Berry                        (858) 534-2098
                                          Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	         UC San Diego
http://biostat.ucsd.edu/~cberry/         La Jolla, San Diego 92093-0901