<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Hi,</div><div> I am wondering whether someone can suggest a reference paper based on which all gromacs principal component analysis (PCA) analysis ( i.e g_covar and g_anaeig tools) tools are based . Or, any other review articles on PCA analysis is based will also be useful.</div><div>Thanks</div><div>Sanku</div></div></body></html>