CDM (version 4.991-1)

logLik: Extract Log-Likelihood

Description

Extracts the log-likelihood from either din, gdina, mcdina, slca or gdm objects.

Usage

"logLik"(object, ...)
"logLik"(object, ...)
"logLik"(object, ...)
"logLik"(object, ...)
"logLik"(object, ...)

Arguments

object

An object inheriting from either class din, class gdina, slca or class gdm.

...

Additional arguments

See Also

din, gdina, gdm, mcdina, slca

Examples

# logLik method | DINA model
data(sim.dina)
data(sim.qmatrix)
d1 <- din(sim.dina, q.matr = sim.qmatrix, rule = "DINA")
summary(d1)
lld1 <- logLik(d1)
  ##   > lld1
  ##   'log Lik.' -2042.378 (df=25)
  ##   > attr(lld1,"df")
  ##   [1] 25
  ##   > attr(lld1,"nobs")
  ##   [1] 400	
nobs(lld1)  

# AIC and BIC
AIC(lld1)
BIC(lld1)