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st: Latest version of -smileplot- now on SSC


From   Roger Newson <roger.newson@kcl.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: Latest version of -smileplot- now on SSC
Date   Wed, 04 Dec 2002 20:28:53 +0000

Dear All

Thanks to Kit Baum, the very latest version of the -smileplot- package is now available for download on SSC. Type -net desc smileplot- to find out more.

The -smileplot- package takes, as input, a data set with 1 observation per estimated parameter and data including the corresponding P-values, carries out a multiple test procedure on the multiple P-values, and plots the P-values (on a reverse log scale) on the Y-axis against the corresponding parameter estimates (or another variable) on the X-axis. The new version has an improved help file (incorporating suggestions kindly provided by Nick Cox) and also the option of suppressing the reference line on the X-axis corresponding to the value of a parameter under the null hypothesis. The second improvement is useful for plotting P-values against a variable other than the corresponding parameter estimates. For instance, in a genome scan, the data points might correspond to genes, the P-values might be from tests of associations of those genes with a disease, and the X-axis variable might be the positions of those genes on a chromosome.

More information on the -smileplot- package should appear in the near future in a Stata Journal article, which the editors kindly accepted for publication yesterday. (Thanks in advance to them for their good work.)

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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