st: New version of -xcontract- on SSC

[Roger Newson <roger.newson@kcl.ac.uk>]

Hello All

Thanks to Kit Baum, there is now a new version of -xcontract- downloadable 
from SSC (using the -ssc- command in Stata). The -xcontract- package is 
described as below on my website. The new version incorporates two 
suggestions from Nick Cox to make the code slightly more efficient.

Best wishes

Roger

---------------------------------------------------------------------------------------
package xcontract from http://www.kcl-phs.org.uk/rogernewson/stata8
---------------------------------------------------------------------------------------

TITLE
      xcontract: Make data set of frequencies and percents on disk or in 
memory

DESCRIPTION/AUTHOR(S)
      xcontract is an extended version of contract. It creates a data set 
with one
      observation per combination of values of a list of variables in the 
existing
      data set and new variables containing the frequency and percent of each
      combination, and, optionally, the cumulative frequency and percent 
of each
      combination. A list of by-variables can be used with xcontract, and the
      percents will then be calculated within by-groups. The output data 
set may
      either be listed to the Stata log, or saved to a disk file, or 
written to the
      memory (overwriting any existing data set).

      Author: Roger Newson
      Distribution-Date: 05july2004
      Stata-Version: 8

INSTALLATION FILES                                  (click here to install)
      xcontract.ado
      xcontract.hlp
---------------------------------------------------------------------------------------
(click here to return to the previous screen)


--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
King's College London
5th Floor, Capital House
42 Weston Street
London SE1 3QD
United Kingdom

Tel: 020 7848 6648 International +44 20 7848 6648
Fax: 020 7848 6620 International +44 20 7848 6620
  or 020 7848 6605 International +44 20 7848 6605
Email: roger.newson@kcl.ac.uk
Website: http://www.kcl-phs.org.uk/rogernewson

Opinions expressed are those of the author, not the institution.

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/