VarCorr function

Extract variance and correlation components from model

## S3 method for class 'galamm'
VarCorr(x, sigma = 1, ...)

Arguments

• x: An object of class galamm returned from galamm.
• sigma: Numeric value used to multiply the standard deviations. Defaults to 1.
• ...: Other arguments passed onto other methods. Currently not used.

Returns

An object of class c("VarCorr.galamm", "VarCorr.merMod").

Examples

# Linear mixed model with heteroscedastic residuals
mod <- galamm(
  formula = y ~ x + (1 | id),
  weights = ~ (1 | item),
  data = hsced
)

# Extract information on variance and covariance
VarCorr(mod)

# Convert to data frame
# (this invokes lme4's function as.data.frame.VarCorr.merMod)
as.data.frame(VarCorr(mod))

See Also

print.VarCorr.galamm() for the print function.

Other details of model fit: coef.galamm(), confint.galamm(), deviance.galamm(), factor_loadings.galamm(), family.galamm(), fitted.galamm(), fixef(), formula.galamm(), llikAIC(), logLik.galamm(), nobs.galamm(), predict.galamm(), print.VarCorr.galamm(), ranef.galamm(), residuals.galamm(), sigma.galamm(), vcov.galamm()