Joao,
please explain your idea a little more comprehensively: how does -assert-
further Joseph`s cause?
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Joao Ricardo F.
Lima
Sent: Tuesday, November 25, 2008 6:10 PM
To: [email protected]
Subject: Re: st: trouble using _n-1
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?
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
----------------------------------------
Joao Ricardo Lima, D.Sc.
Professor
UFPB-CCA-DCFS
Fone: +553138923914
Skype: joao_ricardo_lima
----------------------------------------
*
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*
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* http://www.ats.ucla.edu/stat/stata/
