TY - JOUR T1 - Statistical and conceptual challenges in the comparative analysis of principal components JF - bioRxiv DO - 10.1101/007369 SP - 007369 AU - Josef C. Uyeda AU - Daniel S. Caetano AU - Matthew W. Pennell Y1 - 2014/01/01 UR - http://biorxiv.org/content/early/2014/07/22/007369.abstract N2 - ER -