brglm.control: Auxiliary for Controlling BRGLM Fitting
Description
Auxiliary function as user interface for brglm
fitting. Typically only used when calling brglm or brglm.fit.Usage
brglm.control(br.epsilon = 1e-08, br.maxit = 100, br.trace=FALSE,
br.consts = NULL, ...)Arguments
br.epsilon
positive convergence tolerance for the iteration
described in brglm.fit. br.maxit
integer giving the maximum number of iterations for
the iteration in brglm.fit. br.trace
logical indicating if output should be prooduced for
each iteration.
br.consts
a (small) positive constant or a vector of
such.
...
further arguments passed to or from other methods.
Value
- A list with the arguments as components.
Details
If br.trace=TRUE then for each iteration the iteration number
and the current value of the modified scores is
cat'ed. If br.consts is specified then br.consts
is added to the original binomial counts and 2*br.consts. Then
the model is fitted to the adjusted data to provide starting values
for the iteration in brglm.fit. If br.consts = NULL
(default) then brglm.fit adjusts the responses and totals by
"number of parameters"/"number of observations" and twice that, respectively.References
Kosmidis, I. (2007). Bias reduction in exponential family nonlinear
models. PhD Thesis, Department of Statistics, University of
Warwick.