Piece–wise Information for the Truncated Cosinor Model
C. P. Kitsos *
Technological Educational Institute of Athens Egaleo 12210, Athens, Greece.
T. L. Toulias
Technological Educational Institute of Athens Egaleo 12210, Athens, Greece.
*Author to whom correspondence should be addressed.
Abstract
The target of this paper is to examine the average–per–observation information matrix for the truncated cosinor model. We state and prove an orthogonal decomposition of this matrix so that the total information can be obtained as a result of three particular parts. The total information is presented piece–wise in three components. Each component is easily represented. Therefore the total information can be checked through three different points on the collection of the information.
Keywords: Optimal design theory, Design measure, D–optimality, c–optimality, cosinor model, information matrix.