d STB-48 March 1999 t .. Other STBs p gr34_1 Drawing Venn diagrams p gr35 Diagnostic plots for Singh-Maddala and Dagum distrib p sg104 Analysis of income distributions p sg105 Creation of bivariate random lognormal variables p sg106 Fitting Singh-Maddala and Dagum distrib. by max. like. p sg107 Generalized Lorenz curves and related graphs p sg108 Computing poverty indices p sg110 Hardy-Weinberg equilibrium test and allele freq. est.