vcov.egf {epigrowthfit}

Model Covariance Matrices

Description

Extracts (or, if necessary, computes) the covariance matrix of bottom level parameters beta and theta, corresponding to the output of coef(object).

Usage

## S3 method for class 'egf'
vcov(object, ...)

Arguments

object

an egf object.

...

unused optional arguments.

Details

If the resulting matrix is not finite or not positive definite, then the fit specified by object should be investigated, as the optimizer that produced the fit may have failed to converge.

Value

A real, symmetric matrix.

See Also

The generic function vcov.