View source: R/bollen.loglik.R
bollen.loglik | R Documentation |
Internal function, called by Likedist
.
bollen.loglik(N, S, Sigma)
N |
Sample size. |
S |
Observed covariance matrix. |
Sigma |
Model fitted covariance matrix, Σ(θ). |
The log-likelihood is computed by the function bollen.loglik
using the formula 4B2 described by Bollen (1989, pag. 135).
Returns the Log-likelihood.
Massimiliano Pastore, Gianmarco Altoe'
Bollen, K.A. (1989). Structural Equations with latent Variables. New York, NY: Wiley.
Likedist
data("PDII") model <- " F1 =~ y1+y2+y3+y4 " fit0 <- sem(model, data=PDII) N <- fit0@Data@nobs[[1]] S <- fit0@SampleStats@cov[[1]] Sigma <- fitted(fit0)$cov bollen.loglik(N,S,Sigma)
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