[R] Another SEM question

[Jarrett Byrnes]

Luba,

If you could provide the code you ran, perhaps the listserv can be of  
help.

On Jul 20, 2009, at 7:55 AM, Stein, Luba (AIM SE) wrote:

> Hello,
>
> I use the function sem the following way
> sem.mod <- sem(model, mod.cov, N=109) where the variables are  
> modelled:
>
> Z -> M
> Z -> I
> Z -> R
> M <-> M
> I <-> I
> R <-> R
> Z <-> Z
>
> The output is
> ...
>
> Normalized Residuals
> Min. 1st Qu. Median Mean 3rd Qu. Max.
> -7.3300 -0.2750 -0.2670 -0.1290 -0.0369 9.0300
>
> Parameter Estimates
> Estimate Std Error z value Pr(>|z|)
> 0.0021625 0.00017037 12.693 0 M <--- Z
>
> Iterations = 13
>
>
> In "Structural Equation Modeling With the sem Package in R" by John  
> Fox is stated that there should be an output for each external  
> variable.
>
> Where is my fault, that I receive the output only for the first  
> variable?
>
>
> Thanks for your help,
> Luba
>
>
>
>
>
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>
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