350 mhz Pentium II running Stata for Windows 98 With Stata, speed is only the beginning. LINEAR MODELS regression, ANOVA, instrumental variables, three-stage least squares, constrained regression, tobit, interval regression, Heckman selection model, Newey-West, quantile regression, robust variance estimates, and more MODELS FOR BINARY AND CATEGORICAL DATA logit, probit, casecontrol, conditional logistic, multinomial logit, ordered logit and probit, complementary log-log, Heckman selection model

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... for binary outcomes, GLM (many families and links), robust variance estimates, and more MODELS FOR COUNT DATA Poisson, negative binomial, zero-inflated models, incidence data, robust variance estimates, and more SURVIVAL ANALYSIS Kaplan-Meier, Nelson-Aalen, Cox regression, tests of proportional hazards, time-varying covariates, left truncation and right censoring, W:ibull, exponential, Gompertz, log-normal, and more PANEL DATA MODELS random-and fixed-effects regression, random-effects probit, fixed-effects logit, random-and fixed-effects Poisson and negative binomial, random-effects tobit, GEE, and more NONPARAMETRIC METHODS Wilcoxon-Mann-Whitney, Wilcoxon signed ranks, Kruskal-Wallis, Spearman and Kendall correlations, Kolmogorov-Smirnov, exact binomial confidence intervals, and more MULTIVARIATE METHODS factor analysis, canonical correlation, multivariate regression, and more PLUS complete data-management facilities, extensive statistical graphics, custom maximum-likelihood estimation, matrix commands and functions, programming language to add commands, menu and dialog box programming, sample size and power, nonlinear regression, Monte-Carlo simulation, bootstrapping, and more Search all the capabilities at