Time Series Analysis, Stochastic Process, Volatility, Data Science.
meaning as maximizing log_likelihood. The return of function “mle_opt” is an array of size four, known as optimal parameters of GARCH (1,1) volatility model. Let's have one example to show how we can use these functions. As example, I use “Brent Oil Price” from the period 1987–2022 to see how we