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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