Browsing by Subject "Biochemical profiles"

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Missing data imputation via the expectation-maximization algorithm can improve principal component analysis aimed at deriving biomarker profiles and dietary patterns

Malan, Linda; Smuts, Cornelius M.; Baumgartner, Jeannine; Ricci, Cristian (Elsevier, 2020)

Principal component analysis (PCA) is a popular statistical tool. However, despite numerous advantages, the good practice of imputing missing data before PCA is not common. In the present work, we evaluated the hypothesis ...