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Stata is an exciting statistical package that offers all standard and many non-standard methods of data analysis. In addition to general methods such as linear, logistic and Poisson regression and generalized linear models, Stata provides many more specialized analyses, such as generalized estimating equations from biostatistics and the Heckman selection model from econometrics. Stata has extensive capabilities for the analysis of survival data, time series, panel (or longitudinal) data, and complex survey data. For all estimation problems, inferences can be made more robust to model misspecification using bootstrapping or robust standard errors based on the sandwich estimator. In each new release of Stata, its capabilities are significantly enhanced by a team of excellent statisticians and developers at Stata Corporation.