the National Key New Drug Creation Special Programs(2009ZX09304-001 and 2009ZX09502-004);National Natural Science Foundation of the People’s Republic of China(81072692);National Key Fundamental Research"973"Projects(2011CB505300 and 2011CB505303)
Objective Although principal components analysis profiles greatly facilitate the visualization and interpretation of the multivariate data,the quantitative concepts in both scores plot and loading plot are rather obsc...