Joseph,
I think that this can do the trick:
by idcode: assert var1-var1[_N-1]==0
HTH,
Joao Lima
2008/11/25 Joseph Wagner <[email protected]>:
> I wish to use the program -concord- to perform an interrater reliability for
> a rater. The data is arranged as such:
>
> idcode date var1 var2
> --------------------------------------------
> person1 date var1 var2
> person1 date var1 var2
> person2 date var1 var2
> person2 date var1 var2
>
>
> there are too many variables and observations for me to -reshape- wide so I
> thought that I could try this:
>
> bysort idcode date: concord var1 var1[_n-1] since the data is arrayed
> as pairs of observations which I wish to compare
>
> but instead of working I get the following error: "_n unknown weight type"
>
> Am I forced to try some sort of piecewise -reshape- (sets of variables) or
> am I just doing this all wrong?
> *
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>
--
----------------------------------------
Joao Ricardo Lima, D.Sc.
Professor
UFPB-CCA-DCFS
Fone: +553138923914
Skype: joao_ricardo_lima
----------------------------------------
*
* For searches and help try:
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/