Biometrical Letters Vol. 49(1), 2012, pp. 37-44


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DETECTION OF THE CHANGE POINT
IN THE WINTER WHEAT EXPERIMENT


Anna Szczepańska, Ewa Bakinowska

Department of Mathematical and Statistical Methods, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, e-mail: sanna6@wp.pl


The aim of this paper is the detection of change point which is treated as an abrupt change in the response function or one of its derivatives. Using the semiparametric model and the theory given by Speckman (1994) the change point is identied. The theory is illustrated by the real experiment where the dry biomass of winter wheat is studied.


biomass of winter wheat, change point, kernel function, semiparametric model, smoother matrix