THE ORTHOGONAL PROJECTION MATRIX FOR THE UNBALANCED FACTORIAL DESIGN
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概要
- 論文の詳細を見る
The design matrix X for an unbalanced factorial design can be expressed as a product of two matrices T and X_o, where T is replication matrix and X_o is the corresponding balanced design matrix. We suggest an efficient method for computing the orthogonal projection matrix Px=X(X'X)^-X' for an unbalanced model y=Xβ+e using the nonzero eigenvalues and eigenvectors of X'_oX_o. Also we can easily find a regular rule for the nonzero eigenvalues and the corresponding eigenvectors.
- 日本計算機統計学会の論文
著者
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Kim Byung
Korea Advanced Institute Of Science And Technology
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Park Jong
Korea Advanced Institute Of Science And Technology
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