Re: [R] Structural Equation Models(SEM)

2009-12-03 Thread Ralf Finne
study shows GLS is more efficient for small and badly distributed samples. So perhaps it would be worth the effort to make an addition to sem(sem) Yours Ralf Finne Emeritus Novia University of Applied Science Vasa Finland Jeremy Miles jeremy.mi...@gmail.com 12/02/09 8:22 PM In the world of SEM

[R] Structural Equation Models(SEM)

2009-12-02 Thread Ralf Finne
for large samples and normal distribution the SEM-problem should be optimized by GLS (Generalized Least Squares). So to the question: Is there any R-function that solves SEM with GLS? Ralf Finne Novia University of Applied Science Vasa Finland __ R

[R] Structural Equation Models(SEM)

2009-11-25 Thread Ralf Finne
a mistake? Have anyone of you knowledge of any other package doing similar things like Confirmative Factor Analysis Ralf Finne Novia University of Applied Science Vasa Finland __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r

[R] Expert systems

2008-01-29 Thread Ralf Finne
when a combination of systems would appear. One typical expert system uses Fuzzy Logic to suggest the diagnosis. In more modern systems one tends to make the system self learning to improve the system. Hoping for comments Ralf Finne Swenska yrkeshögskolan Vasa Finland