**If you like the book, you'll love the class!**ICPSR Sumer Program, July 11-15, 2011 in Berkeley, CA: Models for Categorical Outcomes Using Stata: Specification, Estimation, and Interpretation. Enrollment information is here. The course web site is under construction here. E-mail jslong@indiana.edu with questions.- 2009-07-31:
**STATA 11**and spost9_ado package: earlier versions of prchange and countfit sometimes generated errors under Stata 11. Both programs have been revised to work under Stata 11. Note that spost9_ado does NOT work with factor variables. - Information on using UltraEdit or TextPad.
- 2007-09-18: An error was found in -fitstat- when run in Stata 10. This affect some R2s for -mlogit- and -mprobit-.
- 2007-07-02: We have updated SPost so that all of our test programs work with Stata 10. If you encounter problems, please let us know.
- 2007-02-17: the option label(string) was added to prvalue to label output when using save and diff options. This is very handy.
- 2007-02-08: the option zero was added to rest(). For example, prvalue, x(x1=5) rest(zero) will set all variables but x1 to zero.
- 2006-10-10: If you are having trouble with findit locating a package you want, try:

net from http://www.indiana.edu/~jslsoc/stata/ - 2006-07-25: SUG talk in Boston.
- 2006-05-25L asprvalue had a bug due to what appears to be a bug in Stata's predict command. We have added a workaround in asprvalue version 0.2.0.
- 2006-05024: prvalue had a bug when you used a series of prvalue commands with save and dif. This has been fixed in version 2.0.5.
- 2005-08-22: prvalue and prgen in the spost9_ado package calculate confidence intervals for predicted values and discrete changes in predicted values using the delta method, bootstrapping, ept and ml methods. Full details are forthcoming in Jun Xu and J. Scott Long (forthcoming) "Confidence Intervals for Predicted Outcomes in Regression Models for Categorical Outcomes"
*The Stata Journal*. A preprint of the article is found here. Details on the formula used to implement the delta method are found here. - 2005-08-22: prvalue and prgen in the spostado package for Stata 8 calculate confidence intervals for predicted values and discrete changes in predicted values using the delta method, bootstrapping, ept and ml methods. The prior commands without confidence intervals have been renamed to prvalue1.ado and prgen1.ado.
- 2005-01-11: listcoef (1.6.8) is being evaluated for possible release with three new options for use with mlogit. gt specifies that only outcome contrast with the first category greater than the second will be listed; lt specifies only list contrast with the first less than the second. adjacent specifies that only comparisons of adjacent categories will be listed. These are designed for use with ordinal outcomes in the mlogit model.

### UltraEdit and Stata

I now use UltraEdit for editing do and ado files and find UltraCompare to be very useful when programming and checking results. UltraEdit allows syntax highlighting which allows you to color code the keywords and commands from the Stata language. You can download my syntax file here. But, I don't know UltraEdit well enough yet to give you advice on how to set syntax highlighting--you'll have to read the documentation on contact UltraEdit technical support. If you have a better syntax file for UltraEdit, please send it to me!

### Textpad

TextPad (www.textpad.com) hasn't been supported well in recent years. It is still an excellent editor, but lacks code folding and other features that are found in UltraEdit. TextPad also has a feature known as syntax highlighting which allows you to color code the keywords and commands from the Stata language. To do this you will need the syntax file that I have created. For the syntax file stata.syn for Stata 6 and 7, click here. For a syntax file stata.syn for Stata 8 (which should work with prior versions of Stata as well, click here. Here is what I know about making this work, but I can't help you if you encounter problems since I no longer use TextPad: On my computers using either Windows 2000, Windows 98, or XP I copy stata.syn to the directory: c:\Program Files\textpad\user\ Then follow the TextPad help for the topic "How to Customize Syntax Highlighting." While my syntax file includes most of the Stata keywords, it is not complete. If you create a better version, please let me know.