RE: [R] Structural equation models with R

From: John Fox <jfox_at_mcmaster.ca>
Date: Thu 10 Mar 2005 - 02:13:27 EST


Dear Andre,

Is one of the observed variables named "ridos" or "riqdos"?

I hope this helps,
 John



John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox

> -----Original Message-----
> From: r-help-bounces@stat.math.ethz.ch
> [mailto:r-help-bounces@stat.math.ethz.ch] On Behalf Of André
> TavaresCorrêa Dias
> Sent: Wednesday, March 09, 2005 9:53 AM
> To: r-help@stat.math.ethz.ch
> Subject: [R] Structural equation models with R
>
> Hello useRs,
> I`m running structural equation models with R, but for one of
> my models the below error message apears. I`m trying to
> change startvalues but without success. The manual for sem
> package did not help me. Does anyone knows how to change
> startvalues for iteration in sem package? Or it can be
> another problem with the model?
>
> Error in startvalues(S, ram, debug = debug, tol = start.tol) :
> subscript out of bounds
>
> The model (with three latent variables: 'reg','folha','solo'))
>
> model.com=matrix(c(
> 'ridos>dendos', 'a1', NA,
> 'ridos>reg', 'a2', NA,
> 'ridos>folha', 'a3', NA,
> 'ridos>solo', 'a4', NA,
> 'ridos>raiz', 'a5', NA,
> 'dendos>litter', 'a6', NA,
> 'dendos>reg', 'a7', NA,
> 'litter>reg', 'a8', NA,
> 'folha>reg', 'a9', NA,
> 'solo>reg', 'a10', NA,
> 'raiz>reg', 'a11', NA,
> 'raiz>solo', 'a12', NA,
> 'folha>solo', 'a13', NA,
> 'reg>denjov', 'l1', NA,
> 'reg>riqjov', 'l2', NA,
> 'folha>nfolha', 'l3', NA,
> 'folha>pfolha', 'l4', NA,
> 'solo>nsolo', 'l5', NA,
> 'solo>psolo', 'l6', NA,
> 'riqjov<>riqjov', 'e1', NA,
> 'denjov<>denjov', 'e2', NA,
> 'litter<>litter', 'e3', NA,
> 'riqdos<>riqdos', 'e4', NA,
> 'dendos<>dendos', 'e5', NA,
> 'raiz<>raiz', 'e6', NA,
> 'nsolo<>nsolo', 'e7', NA,
> 'psolo<>psolo', 'e8', NA,
> 'nfolha<>nfolha', 'e9', NA,
> 'pfolha<>pfolha', 'e10', NA,
> 'reg<>reg', NA, 1,
> 'solo<>solo', NA, 1,
> 'folha<>folha', NA, 1),
> ncol=3, byrow=TRUE)
>
> obs.vars.com=c('riqjov','denjov','litter','riqdos','dendos','raiz',
> 'nsolo','psolo','nfolha','pfolha')
>
> sem.com=sem(model.com,S.com,30,obs.vars.com)
>
> -------------------------------
> André Tavares Corrêa Dias
> Laboratório de Ecologia Vegetal
> Departamento de Ecologia - IB
> Universidade Federal do Rio de Janeiro
> Ilha do Fundão, CCS
> Rio de Janeiro, RJ. Brasil
> CEP 21941-590 CP 68020
> Tel. (21)2562-6377
>
> ______________________________________________
> R-help@stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
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R-help@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 Received on Thu Mar 10 02:26:33 2005

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