i am working with the same data with the two sem functions in packages lavaan
and sem
the manner how description of the model are differnt for the the funcion in
sem
and the function sem in lavaan
Thanks a lot
Antra EL MOUSSELLY
Date: Mon, 28 Mar 2011 12:33:46 -0700
From: ml-node+3412819-419762937-225...@n4.nabble.com
To: antr...@hotmail.com
Subject: Re: Structural equation modeling in R(lavaan,sem)
On 28 March 2011 09:00, jouba <[hidden email]> wrote:
Your syntax is not very tidy. That makes it hard to check.
> x1 <->x1, sigmma7, NA
> for me this an exogen variable and i am not obliged to specify this
> equation
>
> model.se<-specify.model()
> x1->x2,gamm1,NA
> x2->x3,gamm2,NA
> x3>x4,gamm3,NA
>
That's probably wrong.
> x4->x5,gamm4,NA
> x7->x6,gamm5,NA
> x6->x5,gamm6,NA
>
Are the above two correct?
> x2 <->x2 ,sigmma1,NA
> x3 <->x3 ,simma2,NA
> x4 <->x4 ,sigmma3,NA
> x5 <->x5 ,sigmma4,NA
> x7 <->x7 ,sigmma5,NA
>
x6 <->x6 ,sigmma6,NA
>
>
It's a somewhat unusual looking model. What are you trying to do?
Jeremy
--
Jeremy Miles
Psychology Research Methods Wiki: www.researchmethodsinpsychology.com
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