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-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
> On
>> Behalf Of japomani
>> Sent: January-31-09 5:04 PM
>> To: r-help@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.
>>
>> ______________________________________________
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>> and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
> R-help@r-project.org mailing list
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> 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:
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