I am recently started using R and I am looking for theorical documentation of forecasting used by library "forecast" in R to forecast a timeseries by default.
Also it will be really interesting if some of you can guide me to find the best way to forecast a time series variable which depends on other timeseries variables, multivariable timeseries.
Thanks a lot for having this great community anyway.
Forecasting: Principles and practice by Rob J Hyndman and George Athanasopoulos (authors of the forecast package) is freely available at the link below:
Dr Hyndman's packages (which include several for time-series forecasting) are listed here: