The numerator of a binomial family is a success probability and its denominator the trials, which are data; the ratio is the probability. A family over a known exposure has a rate for its ratio. Every other family maps both predictors to means through their links.
Arguments
- eta
A list with
eta_numandeta_denom- links
Links of the fitted family, from
family_links()- type
"response"or"link". On the link scale the ratio of a binomial family is the predictor of the probability, that of a family over a known exposure the predictor of the rate, and that of any other family the log ratio of the means.- exposure
The known exposure of each observation, for a family over one: the numerator mean is the rate times the exposure.
NULLwhen it is unknown, which leaves the numerator and denominatorNA.