Hi
I’d like to try to estimate the parameters of the my model
from part of my model my strategy is to estimate separately the parameters, using regression
and i dont now how i can estimate?
I do not know how to enter the numbers I get through SEM in vensim
Please send me if you have a training file about regression calculation؟
Many thanks in Advance
regression
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Re: regression
Can you upload your model and the SEM numbers? And then explain what you want to calculate. Your post doesn't really contain enough information to offer you help.
What is SEM?
What is SEM?
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http://www.ventanasystems.co.uk/forum/v ... f=2&t=4391
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Re: regression
i have a structural equation modeling
i want to use my model numebr in vensim? can i?
the red arrow are my equation relation.
please help me?
I'm so confused
i want to use my model numebr in vensim? can i?
the red arrow are my equation relation.
please help me?
I'm so confused
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Re: regression
I don't know the relationship between SEM parameters and a dynamic model off the top of my head. I think there's a chapter on SEM here though:
https://www.amazon.com/Analytical-Metho ... 0262029499
Usually, if you have a model, you're better off to estimate it directly; parameters estimated by other methods, especially open-loop regressions, generally won't work well.
https://www.amazon.com/Analytical-Metho ... 0262029499
Usually, if you have a model, you're better off to estimate it directly; parameters estimated by other methods, especially open-loop regressions, generally won't work well.
/*
Advice to posters (it really helps us to help you)
http://www.ventanasystems.co.uk/forum/v ... f=2&t=4391
Blog: http://blog.metasd.com
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Advice to posters (it really helps us to help you)
http://www.ventanasystems.co.uk/forum/v ... f=2&t=4391
Blog: http://blog.metasd.com
Model library: http://models.metasd.com
Bookmarks: http://delicious.com/tomfid/SystemDynamics
*/