Stata Terms of use

Terms and conditions of use

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Copyright statement for the Stata Journal

The Stata Journal and the contents of the supporting files (programs, datasets, and help files) are copyright © by StataCorp LP. The contents of the supporting files (programs, datasets, and help files) may be copied or reproduced by any means whatsoever, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the Stata Journal.

The articles appearing in the Stata Journal may be copied or reproduced as printed copies, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the Stata Journal.

Written permission must be obtained from StataCorp if you wish to make electronic copies of the insertions. This precludes placing electronic copies of the Stata Journal, in whole or in part, on publicly accessible websites, fileservers, or other locations where the copy may be accessed by anyone other than the subscriber.

Users of any of the software, ideas, data, or other materials published in the Stata Journal or the supporting files understand that such use is made without warranty of any kind, by either the Stata Journal, the author, or StataCorp. In particular, there is no warranty of fitness of purpose or merchantability, nor for special, incidental, or consequential damages such as loss of profits. The purpose of the Stata Journal is to promote free communication among Stata users.

The Stata Journal (ISSN 1536-867X printed version, 1536-8734 electronic version) is a publication of Stata Press, and Stata is a registered trademark of StataCorp LP.

Copyright statement for the website

(c) Copyright 2001–2014 StataCorp LP

Copyright 2001–2014 StataCorp LP, 4905 Lakeway Drive, College Station, TX 77845 USA. Permission to use, copy, and distribute documents delivered from this World Wide Web server is hereby granted, provided

All other rights are reserved.

The name StataCorp or the Stata logo may not be used in advertising or publicity pertaining to distribution of this information without specific, prior written permission.

The products and offerings described in these documents may be subject to Intellectual Property rights reserved by StataCorp and are not licensed hereunder.

Note that the pictures, icons, and logos encoded in gif files and other formats are either copyrights and/or trademarks of StataCorp LP or others from whom StataCorp has received permission to incorporate into this site. In the context of this site, they are covered by the above Copyright notice. However, the pictures, icons, and logos may not be individually extracted and used in other websites without the written permission of StataCorp or the respective copyright or trademark holder.


Stata, , Stata Press, Mata, , and NetCourse are registered trademarks of StataCorp LP.

Other brand and product names are registered trademarks or trademarks of their respective companies.

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