A graphical univariate & multivariate analysis package for WinXP and Linux. Features principal components analysis (PCA), discriminant function analysis (DFA), cluster analysis, PLS-DA & PLSR, genetic algorithms for feature selection. See the project [[http://pychem.sf.net|webpage]] for further details, and our [[http://bioinformatics.oxfordjournals.org/cgi/content/abstract/22/20/2565|OUP Bioinformatics]] article.