[R] thurston case 5

[japomani]

Never mind, as you can tell I am new at R, I had to load the package.

Best,

Jared

japomani wrote:
> 
> John,
> 
> I installed the psych package and all it's dependencies. Then following
> the psych manual, I type 
> 
> thurstone(x, ranks = FALSE, digits = 2)
> 
> the result is
> 
> Error: could not find function "thurstone"
> 
> Any suggestions?
> 
> Best,
> 
> Jared
> 
> John Fox-6 wrote:
>> 
>> Dear Jared,
>> 
>> See ?thurstone in the psych package. RSiteSearch("Thurstone") turns this
>> up
>> as the first hit. Also see the BradleyTerry package for the similar
>> Bradley-Terry model.
>> 
>> Regards,
>>  John
>> 
>> ------------------------------
>> John Fox, Professor
>> Department of Sociology
>> McMaster University
>> Hamilton, Ontario, Canada
>> web: socserv.mcmaster.ca/jfox
>> 
>>> -----Original Message-----
>>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
>> On
>>> Behalf Of japomani
>>> Sent: January-31-09 5:04 PM
>>> To: r-help at r-project.org
>>> Subject: [R] thurston case 5
>>> 
>>> 
>>> Hi, I hope some one can help. I need to compute Thurston's case 5 on a
>> large
>>> set of data. I have gotten as far as computing the proportional
>>> preference
>>> matrix but the next math is beyond me.
>>> 
>>> Here us my matrix
>>> 
>>> 0.500	0.472	0.486	0.587	0.366	0.483	0.496	0.434
>>> 0.528	0.500	0.708	0.578	0.633	0.554	0.395	0.620
>>> 0.514	0.292	0.500	0.370	0.557	0.580	0.615	0.329
>>> 0.413	0.422	0.630	0.500	0.783	0.641	0.731	0.663
>>> 0.634	0.367	0.443	0.217	0.500	0.351	0.907	0.686
>>> 0.517	0.446	0.420	0.359	0.649	0.500	0.325	0.559
>>> 0.504	0.605	0.385	0.269	0.093	0.675	0.500	0.625
>>> 0.566	0.380	0.671	0.337	0.314	0.441	0.375	0.500
>>> 
>>> Can someone help me write an R script to compute the Thurston Case 5
>> values?
>>> The result should be the scale values for each item.
>>> 
>>> I found three web pages that might be useful in this, but again, I
>>> didn't
>>> know enough to translate them into a result.
>>> 
>>> http://marketing.byu.edu/htmlpages/books/pcmds/THURSTONE.html
>>> http://www.personality-project.org/r/thurstone.html
>>> http://en.wikipedia.org/wiki/Law_of_comparative_judgment
>>> 
>>> Thanks,
>>> 
>>> Jared
>>> --
>>> View this message in context: http://www.nabble.com/thurston-case-5-
>>> tp21768835p21768835.html
>>> Sent from the R help mailing list archive at Nabble.com.
>>> 
>>> ______________________________________________
>>> 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.
>> 
>> ______________________________________________
>> 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.
>> 
>> 
> 
> 

-- 
View this message in context: http://www.nabble.com/thurston-case-5-tp21768835p21781463.html
Sent from the R help mailing list archive at Nabble.com.