what is log likelihood in log likelihood arithmetic formula hourly what is the aic of login.hourly what is the max likelihood of an arima model? how to use log likelihood in arima how to find lag time series how to plot a time series arima hourly amplitude how to find a arithmetic arithmetic acf how to plot hourly time series how to use best fit aarima how to best fit an hourly time series what is the best fit line for hourly time series how long is the lag in auto.arima how to calculate a lag in a log how to best fit the log in an hourly time period what is the aic for an hour how to fit a best fit line in an hourly time series why do we use auto.arima with daily data how many observations does a aic line have