OptionalciOptionalconfidenceOptionallocationOptionalparamNames matching rows/cols of vcov.
OptionalpercentilesPercentiles t_p for requested p.
Scale η (Weibull) / exp(μ) (lognormal) / mean (exponential).
OptionalseParameter standard errors (MLE only), keyed by name.
OptionalshapeShape (Weibull β) or σ (lognormal) or unused.
OptionalvcovVariance–covariance of the parameter vector in paramNames order.
Wald confidence intervals (MLE only).