%0 Journal Article %T Principal Components Analysis with Spline Optimal Transformations for Continuous Data %A Nuno Lavado %A Teresa Calapez %J IAENG International Journal of Applied Mathematics %D 2011 %I International Association of Engineers (IAENG) %U http://www.iaeng.org/IJAM/issues_v41/issue_4/IJAM_41_4_14.pdf