Browsing by Author "Wijekoon, P."
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Item Application of clustering and ordination methods to determine the optimal plot size for vegetation sampling of a Sri Lankan dipterocrap forest(NSF:Colombo, 2015-03) Wimalasena, S.C.D.; Wijekoon, P.; Fernando, S.S.; Gunatilleke, I.A.U.N.Item Establishment of a database on insect specimens in the ISDF of the Department of ZoologySumanasinghe, D.N.; Edirisinghe, J.P.; Wijekoon, P.Item Journey of the Journal(NSF:Colombo, 2019-03) Wijekoon, P.Item Pre-test estimation in the linear regression model under stochastic restrictions(University of Peradeniya. Peradeniya, 1995) Wijekoon, P.; Trenkler, G.In this paper, a general method to find stochastic properties of various stochastic pre-test estimators and forecasts is developed. This method is applicable if the convariance matrix O of the prior information is nonsingular.