Profile: Infometrix, Inc. develops software products in the field of chemometrics, employing pattern recognition and modeling techniques for the analysis of multivariate data sets in chemistry & biotechnology. Our Pirouette 4.0 is a comprehensive chemometrics modeling software designed specifically for windows NT/2000/XP/vista that includes prediction, classification, data exploration and multivariate regression as well as mixture analysis method, implemented in a single program.