List Coefficients by Model Component
S3-generic function to use with models which contain several groups of
coefficients in their coefficient vector. The
are intended to list the coefficients by group. The default method
splits the coefficient vector given the number of
coefficients by group.
a model with groups of coefficients or, for the default method, a vector of coefficients.
a named vector specifying the number of coefficients per group.
potential further arguments (currently ignored).