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This page contains only historical information and is not about the current release of Stata. Please see our Stata 13 page for information on the current version of Stata.

New in Stata 12

Stata 12 now shipping. Highlights are shown below. Select any header to find out more.

PDF of the Stata 12 announcement

Also visit Overview: Why use Stata? and details of Stata’s features.

Structural equation modeling (SEM)

  • Path diagrams
  • Graphical model builder
  • Standardized and unstandardized estimates
  • Modification indices
  • Direct and indirect effects
  • Score tests and Wald tests
  • Factors scores and other predictions
  • Goodness of fit
  • Estimation with groups and tests of invariance
  • Survey data and clustered data
  • Raw or statistical summary data
  • FIML estimation with missing at random (MAR) data
  • Maximum likelihood, ADF, and GMM estimation
  • Flexible extension of multivariate regression, instrumental variables, and simultaneous systems
  • Confirmatory factor analysis (CFA), correlated uniqueness models, latent growth models, multiple indicators and multiple causes (MIMIC), ...
  • More ...

Contrasts

  • Compare reference or adjacent categories
  • Compare to grand mean
  • Orthogonal polynomials
  • Treatment effects
  • More ...

Pairwise comparisons

  • Compare means, intercepts, or slopes
  • Compare odds ratios
  • Bonferroni, Scheffé, Tukey, Dunnett, and other adjustments
  • More ...

Margins plots

  • Profile and interaction plots
  • Margins, contrasts, and pairwise comparisons
  • Potential outcomes
  • Comparative graphs
  • More ...

Multiple imputation

  • Chained equations
  • Conditional imputation
  • Impute separately within groups
  • Linear and nonlinear predictions
  • Measure simulation error
  • Panel data and multilevel models
  • Impute continuous, ordinal, cardinal, and count variables
  • More ...

ROC analysis

  • Parametric and nonparametric
  • Adjustments for covariates
  • Case-control regression models
  • Bootstrap and model-based SEs
  • Area under the curve (AUC) and partial AUC
  • More ...

Contour plots

Multilevel mixed-effects models

  • Complex survey data
  • Frequency and sampling weights
  • Robust and clustered SEs
  • Weighting at each level
  • Residual covariance structures: exponential, banded, and Toeplitz
  • More ...

Excel® import/export

  • Preview tool
  • Adjust import based on preview
  • More data management: ODBC connections strings, EBCDIC, rename groups of variables, ...
  • More ...

Unobserved components model (UCM)

  • Trend, seasonal, and cyclical components
  • Static and dynamic forecasts of components
  • Stochastic cycles
  • More ...

Automatic memory management

  • Automatically adjusts to dataset size
  • Tunable
  • Up to 1 terabyte of memory

ARFIMA

  • Long-memory processes
  • Fractional integration
  • Robust variance estimates
  • Static and dynamic forecasts
  • Linear constraints
  • More ...

Interface

  • Manage variables, storage types, notes, and formats without leaving the main interface
  • Select variables using filters
  • Filter prior commands and search results
  • Tabbed Viewer
  • Jump to dialogs, related commands, and sections in the online help
  • Hide, show, reorder, and filter variables in the Data Editor
  • Preview before pasting data
  • PDF export of results and graphs
  • New Mac interface

Multivariate GARCH

  • Constant conditional correlations (CCC)
  • Dynamic conditional correlations (DCC)
  • Varying conditional correlations (VCC)
  • Multivariate normal and Students’ t errors
  • Robust variance estimates
  • Level and variance predictions
  • Static and dynamic forecasts
  • More ...

Spectral density

  • Parametric estimates after ARIMA, ARFIMA, and UCM
  • Assess importance of frequencies
  • More ...

Installation Qualification

  • Downloadable tool
  • Report for submission to regulatory agencies
  • More ...

Time-series filters

  • Trend and cycle decompositions
  • Christiano–Fitzgerald band-pass filter
  • Baxter–King band-pass filter
  • Hodrick–Prescott high-pass filter
  • Butterworth high-pass filter
  • More ...

Stata/MP

  • More estimators
  • Up to 64 cores
  • More ...

Business calendars

  • Trading days
  • User definable
  • Lags and leads using business days
  • Conversions from standard calendar
  • More ...

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