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This page contains only historical information and is not about the current release of Stata. Please see our Stata 18 page for information on the current version of Stata.



  • There are new manuals: [D] Data management, [MV] Multivariate Statistics, and [M] Mata.

  • Documentation (printed and online) groups related options into categories. In addition, the categories match the tabs on dialogs.

  • For all estimation commands, there is now an entry called postestimation following the estimation command. For instance, following [R] regress is [R] regress postestimation. The postestimation entry documents command-specific postestimation facilities to further analyze the results and also directs you to other relevant postestimation features.

    In the online help system, go to the help for the estimation command, and click on postestimation in the upper-right corner.

  • There are now glossaries in the [M], [SVY], [TS], and [XT] manuals. The glossaries define commonly used terms and explain how we use these terms in our documentation.

  • . Stata’s help command and online help facility have new features:
    • Spaces and colons are now allowed in help topics, for example, help graph intro, help regress postestimation, or help svy: logistic (with or without the colon).

    • Typing help sqrt() now gives you help for Stata’s sqrt() function. Typing help mata sqrt() gives you help for Mata’s sqrt() function.

    • Many command abbreviations are now recognized; for example, help reg post is understood to mean help regress postestimation, and help tw con is understood to mean help graph twoway connected.