---
title: "ARMA processes, AIC and estimation"
output: html_document
---

## Simulation of ARMA

Simulate a time series of length 100 using an ARMA model (you may choose the number and values of parameters in both the AR and the MA part of the model)

- Fit various ARMA models with different number of parameters and compare the AIC to choose a model - do you get the same order of the model as was used in the simulation?
- Estimate the parameters in the chosen model - if you got the right order, are the estimates then close to the parameters used in the simulation?