Re: [R] Structural equation modeling in R(lavaan,sem)

From: Jeremy Miles <>
Date: Mon, 28 Mar 2011 12:28:38 -0700

On 28 March 2011 09:00, jouba <> 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
> 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 Miles
Psychology Research Methods Wiki:

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