Gunarathna, I.G.I.S.C.; Nandani, E.J.K.P.
(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
Forecasting is the prediction of values of a variable based on known past values of that variable or other related variables. Forecasts also may be based on expert judgments which in turn are based on historical data and ...