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st: Latest version of -smileplot- now on SSC

From   Roger Newson <>
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 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

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

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