Thanks to Kit Baum, a new package -cgroup- is now available for download from SSC. In Stata, use the -ssc- command to do this.
The -cgroup- package is described as below on my website. I wrote it to simplify the task of inputting data from generic spreadsheets, keyed by multiple string variables, and converting these data to Stata datasets, keyed and sorted by numeric factor variables of the kind used by Stata Version 11. It is useful in conjunction with the -sencode- package, which you can also download from SSC.
Best wishes
Roger
Roger B Newson BSc MSc DPhil
Lecturer in Medical Statistics
Respiratory Epidemiology and Public Health Group
National Heart and Lung Institute
Imperial College London
Royal Brompton Campus
Room 33, Emmanuel Kaye Building
1B Manresa Road
London SW3 6LR
UNITED KINGDOM
Tel: +44 (0)20 7352 8121 ext 3381
Fax: +44 (0)20 7351 8322
Email: [email protected]
Web page: http://www.imperial.ac.uk/nhli/r.newson/
Departmental Web page:
http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/
Opinions expressed are those of the author, not of the institution.
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package cgroup from http://www.imperial.ac.uk/nhli/r.newson/stata10
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TITLE
cgroup: Group contiguous observations with identical values of a varlist
DESCRIPTION/AUTHOR(S)
cgroup inputs a list of variables specified by a varlist, and
generates, as output, a new integer-valued variable,
indicating, in each observation, membership of a group of
contiguous observations with identical values of the varlist.
It is therefore a non-sorting version of gsort.
Author: Roger Newson
Distribution-Date: 30november2009
Stata-Version: 10
INSTALLATION FILES (click here to install)
cgroup.ado
cgroup.sthlp
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