| Data Management*
data
transformations, match-merge, import/export data, ODBC, SQL, XML,
by-group processing, append files, sort, row–column transposition,
labeling, saving results,
...
Basic statistics
summaries,
cross-tabulations, correlations, t tests, equality-of-variance tests,
tests of proportions, confidence intervals, factor variables,
...
Linear models*
rregression; bootstrap, jackknife, and robust Huber/White/sandwich
variance estimates; instrumental variables; three-stage least squares;
constraints; quantile regression; GLS; ...
Longitudinal data/panel data*
random
and fixed effects with robust standard errors, linear mixed models,
random-effects probit, GEE, random- and fixed-effects Poisson, dynamic
panel-data models, and instrumental-variables regression; panel
unit-root tests; AR(1) disturbances; ...
Multi-level Mixed Effect Models*
ontinuous,
binary, and count outcomes; two-, three-, and multiway
random-intercepts and random-coefficients models; crossed random
effects; ML and REML estimation; BLUPs of effects and fitted values;
hierarchical models; residual error structures; support for survey data
in linear multilevel models; ...
Binary, count, and limited
dependent variables*
logistic,
probit, tobit; Poisson and negative binomial; conditional, multinomial,
nested, ordered, rank-ordered, and stereotype logistic; multinomial
probit; zero-inflated and left-truncated count models; selection
models; marginal effects; ...
ANOVA/MANOVA*
balanced and unbalanced designs; factorial, nested, and mixed designs; repeated measures; marginal means; contrasts, ... SEM (Structural equation modeling)*
graphical model builder, standardized and unstandardized estimates,
modification indices, direct and indirect effects, path diagrams,
factors scores and other predictions, estimations with groups and tests
of invariance, goodness of fit, handling of MAR data by FIML, survey
data, clustered data...
Multivariate methods*
factor
analysis, principal components, discriminant analysis, rotation,
multidimensional scaling, Procrustean analysis, correspondence
analysis, biplots, dendrograms, user-extensible analyses, ...
Cluster analysis
hierarchical
clustering; kmeans and kmedian nonhierarchical clustering; dendrograms;
stopping rules; user-extensible analyses; ...
Generalized Linear Models (GLMs)*
ten
link functions, user-defined links, seven distributions, ML and IRLS
estimation, nine variance estimators, seven residuals, ...
Nonparametric methods*
Wilcoxon–Mann–Whitney,
Wilcoxon signed ranks, and Kruskal–Wallis tests; Spearman and Kendall
correlations; Kolmogorov–Smirnov tests; exact binomial CIs; survival
data; ROC analysis; smoothing; bootstrapping; ...
Exact Statistics
exact logistic and Poisson regression, exact case–control statistics, binomial tests, Fisher’s exact test for r × c tables, ...
Resampling and simulation
methods
bootstrap, jackknife, and Monte Carlo simulation, permutation tests, ...
Multiple Imputation
nine
univariate imputation methods, multivariate normal imputation, chained
equations, explore pattern of missingness, manage imputed datasets, fit
model and pool results, transform parameters, joint tests of parameter
estimates, predictions, ...
GMM and nonlinear regression
Linear and
nonlinear models Linear and nonlinear models
generalized method of moments (GMM), nonlinear regression,...
Programming language
interactive
sessions, large-scale development projects, optimization, matrix
inversions, decompositions, eigenvalues and eigenvectors, LAPACK
engine, real and complex numbers, string matrices, interface to Stata
datasets and matrices, numerical derivatives, object-oriented
programming, ...
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Model testing and post-estimation
support
WWald tests, LR tests, linear and nonlinear combinations, tests, and
predictions, marginal effects, adjusted means, Hausman tests, ...
Graphics*
line charts, scatterplots, bar charts, pie charts, hi–lo charts,
Graphics editor, regression diagnostic graphs, survival plots,
nonparametric smoothers, distribution Q–Q plots, ...
Graphical User Interface
results window, Command window, Review window, Data Editor, Variables
Manager, Do-file Editor, variable properties, Viewer, Clipboard Preview
Tool, menus/dialogs for all commands, multiple preference sets, ...
Time series*
ARIMA,
ARFIMA, ARCH/GARCH, VAR, VECM, multivariate GARCH, unobserved
components model, dynamic factors, state-space models, business
calendars, correlograms, periodograms, forecasts, impulse-response
functions, unit-root tests, filters and smoothers, rolling and
recursive estimation, ...
Survey methods*
multistage
designs; bootstrap, BRR, jackknife, linearized, and SDR variance
estimation; poststratification; DEFF; predictive margins; means,
proportions, ratios, totals; summary tables; regression, instrumental
variables, probit, Cox regression; ...
Survival analysis*
Kaplan–Meier
and Nelson–Aalen estimators, Cox regression (frailty); parametric
models (frailty); competing risks; hazards; time-varying covariates;
left and right censoring, Weibull, exponential, and Gompertz analysis;
sample size and power analysis; ... Tests, predictions, and effects*
Wald tests; LR tests; linear and nonlinear
combinations, predictions and generalized predictions, marginal means,
least-squares means, adjusted means; marginal and partial effects;
Hausman tests; ...
Epidemiology*
standardization
of rates, case–control, cohort, matched case–control, Mantel–Haenszel,
pharmacokinetics, ROC analysis, ICD-9-CM, ...
Multiple Imputation*
nine univariate imputation methods, multivariate normal imputation,
chained equations, explore pattern of missingness, manage imputed
datasets, fit model and pool results, transform parameters, joint tests
of parameter estimates, predictions, more; ...
Maximum Likelihood**
user-specified
functions; NR, DFP, BFGS, BHHH; OIM, OPG, robust, bootstrap, and
jackknife matrices; Wald tests; survey data; numeric or analytic
derivatives; ...
Other statistical methods
sample
size and power, kappa mesaure of interrater agreement, Cronbach's
alpha, stepwise regression, statistical and mathematical functions, ...
Programming language**
adding
new commands, command scripting, if, while, command parsing, debugging,
menu and dialog-box programming, markup and control language, ...
Internet capabilities
ability to install new commands, web updating, web file sharing, latest Stata news, ...
Embedded Statistical Computations
Numerics by Stata
Installation Qualification
IQ report for regulatory agencies such as the FDA, installation verification accessibility for persons with disabilities
Accessibility
Section 508 compliance, accessibility for persons with disabilities, ...
User-written commands
user-written commands for meta-analysis, data management, survival, econometrics, ...
Internet capabilities
ability to install new commands, web updating, web file sharing, latest Stata news, ...
Contrasts and pairwise comparisons*
compare means, intercepts, or slopes; compare adjacent
categories; compare with reference category or grand mean; orthogonal
polynomials; adjust for multiple comparisons; treatment effects; graph
effects and potential outcomes; ...
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