kaike Information Criterion (AIC) for a generalized Pareto distribution fitted to the provided data.</p>
<p>This function fits a generalized Pareto distribution to the provided data using maximum
likelihood estimation. It estimates the shape1, shape2, and rate parameters
of the generalized Pareto distribution using maximum likelihood estimation. Then, it
calculates the AIC value based on the fitted distribution.</p>
<p>Initial parameter estimates: The function uses the method of moments estimates
as startin