st: New package -lincomest- downloadable on SSC

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

Dear All

Thanks to Kit Baum, there is now a new package -lincomest- downloadable 
from SSC. Type -ssc desc lincomest- in Web-aware Stata to find out more.

-lincomest- is an extension to -lincom-, which calculates confidence 
intervals and P-values for linear combinations of model coefficients. 
-lincomest- is a Stata 7 -eclass- command, and saves the estimate and 
variance of the linear combination as estimation results, with the option 
of holding any existing estimation results to be recalled later by 
-estimates unhold-. The advantage of doing this is that the linear 
combination can be input to the -parmest- package (also downloadable from 
SSC) to create a data set with one observation containing a confidence 
interval and P-value for the linear combination, or to list that data set 
to the Stata log in a user-defined format.  This data set can be 
concatenated with other -parmest- output data sets using the -dsconcat- 
package, and the confidence intervals and/or P-values can then be plotted 
and/or tabulated.

Best wishes

Roger

--
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

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

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