addreg (version 3.0)

vcov.addreg: Calculate Variance-Covariance Matrix for a Fitted addreg Model Object

Description

Returns the variance-covariance matrix of the main parameters of a fitted addreg model object.

Usage

# S3 method for addreg
vcov(object, ...)

Arguments

object

an object of class "addreg", usually from a call to addreg or addreg.smooth.

…

additional arguments for method functions.

Value

A matrix of the estimated covariances between the parameter estimates in the linear or non-linear predictor of the model. This should have row and column names corresponding to the parameter names given by the coef method.

Details

An equivalent method to vcov, to use with addreg models.

See Also

summary.addreg, vcov.glm

Examples

# NOT RUN {
## For an example, see example(addreg)
# }