Can anybody help me with good study material for forecasting(Time Series, Moving Avg, Exponential Smoothing, Adjusted Moving avg.) and Focus Forecasting?
PS: please read this discussion on algorithms for time series forecasting. You might find it helpful.
You can follow Pr Hyndman, he is the father if I can say so of the forecast package Pr Hyndman, he has a good book, which you could access Here.
One point a lot of methods assume stationary process, there is some other methods such as data assimilation, used in weather forecast and even electricity forecasting, which do not make this assumption.
Hope this help.