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PC‐DOT: Improving genomic prediction ability of principal component regression by DOT product

2 monthes ago   |   By Animal Genetics

Abstract
Principal component regression is a useful method developed for prediction based on a dimension-reducing strategy. Generally, the principal components are added to the regression model one by one based on the eigenvalue. Considering that some PCs with large eigenvalues may be poorly associated with the response variable, the PC-Eigen may not be the best framework. Researchers previously tried to add PCs to the model based on their contribution to the sum of squares of the regression and they found that the performance of PC-SS is generally lower than that of the PC-Eigen. A...
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