Dilshani, S.D.M.; Prasangika, K.D.; Jayasekara, L.A.L.W
(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2015-01-22)
A time series (yt, t=1, 2,…,n) is generally considered as an ordered sequence of measurements at equally spaced time intervals. The time series models are useful in many applications to understand the underlying forces and ...