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PCA projections on axes 1 and 2 accounting for 98% of total variance. Eigenvalues of the correlation matrix are symbolized as vectors representing traits that most influence each axis. The 70 points representing means of olive oil samples for each storage time (0, 30, 60, 90 and 120 days) and storage condition (dark and clear glass bottles) are plotted on the plane determined by axes 1 and 2.
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