lin2quad - Merges linear rule and quadratic mapping. qmap - Quadratic data mapping. quadclass - Quadratic classifier. About: Statistical Pattern Recognition Toolbox (C) 1999-2004, Written by Vojtech Franc and Vaclav Hlavac Czech Technical University Prague Faculty of Electrical Engineering Center for Machine Perception Modifications: 11-jun-2004, VF 19-sep-03, VF