Goodness-of-fit tests (deviance, Pearson; Hosmer–Lemeshow for binary logistic).
Deviance-based test that all slopes are zero (Minitab "G").
Deviance R² and adjusted (Minitab: 1 − dev/nullDev).
Optionaloptions: { confidence?: number; type?: "link" | "response" }
Estimated dispersion (1 for binomial / poisson).