QUIMIOMETRIA NONPARAMETRIC STATISTICS BINOMIAL DISTRIBUTION RANDOM CHANGE POINTS SPLIT-PLOT DESIGN DENSITY ESTIMATION SIMPLEX CENTROID DESIGNS MIXED EFFECTS MODELS ERYTHRINA SPECIOSA ANDREWS LEAVES EXTRACTION OPTIMIZATION EM ALGORITHM PRINCIPAL COMPONENT LONGITUDINAL MODELS ERYTHRINA SPECIOSA ANDREW LEAVES SUPERFICIE DE RESPOSTA STATISTICAL ANALYSIS PRINCIPAL COMPONENT ANALYSIS