Nothing

```
#
# new generic methods sprout up regularly
# This is a convenient place to add them
#
# The AER package has a deviance function for tobit models, but I don't think
# that deviance is a useful quantity there.
#
fitted.survreg <- function(object, ...)
predict(object, type = "response", se.fit = FALSE)
fitted.coxph <- function(object, ...) object$linear.predictors
# The nobs result is intended for computing BIC; for coxph we think that
# this is the number of events.
nobs.survreg <- function(object, ...)
length(object$linear.predictors)
nobs.coxph <- function(object, ...) object$nevent
weights.survreg <- function(object, ...)
model.weights(model.frame(object))
weights.coxph <- function(object, ...) {
if (!is.null(object$weights)) object$weights
else model.weights(model.frame(object))
}
```

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