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latent variable

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emmy's picture
Joined: 09/20/2013 - 08:26
latent variable

I want to estimate a sem models with binary data
all exemple that i see it i find covariance between the two latent variable

but in sem the arrow have one head i dont want covariance between latent variable it is a regression i think

i use matrix method
how can i change cov between latents variable in matrix

please help me