This function computes the Fisher information matrix for a regularized Poisson objective function.
poisson_objective_post_cov_approx(
beta,
lam,
reported,
Q,
lnPmat,
regularization_order
)
A vector of spline parameters.
A regularization penalty parameter.
A vector of reported values.
A spline basis matrix.
A matrix size Tobs x Tobs, log of make_likelihood_matrix.
An integer that specifies the regularization order.
Fisher information matrix of a regularized Poisson objective function.