Hessian of the log-likelihood for exponential_lifetime

Returns a function computing the 1x1 Hessian: -d/lambda^2.

# S3 method for class 'exponential_lifetime'
hess_loglik(model, ...)

Arguments

model

An exponential_lifetime model

...

Additional arguments (ignored)

Value

A function(df, par, ...) computing the Hessian matrix