Construct a (quasi-) likelihood-profile based on a glm-fit. For internal use for functions constructing profile-likelihood confidence intervals.
profileDG(fit, steps = 100, wh = 1:p)
an object of class "glm" or "negbin"
a single integer value, the number of steps for the profile
wh
An object of class "profile.glm", "profile".
An adaptation of the code in profile.glm. Will work also for the case that only 0-values occur in one group. For internal use