Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: New version of the -smileplot- package on SSC


From   Roger Newson <roger.newson@kcl.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: New version of the -smileplot- package on SSC
Date   Fri, 27 Jun 2003 16:20:05 +0100

Hello All

Thanks to Kit Baum, there is now a new version of the -smileplot- package on SSC. In Stata, type -ssc desc smileplot- to find out more.

The -smileplot- package is as described below on my website. The new version has all the same programs as the old version. However, the help files now contain a reference to the Stata Journal paper "Multiple-test procedures and smile plots" (by myself and the ALSPAC Study Team, published earlier this week), together with hypertext to download a pre-publication draft of the paper from my website.

Best wishes

Roger


TITLE
smileplot: Multiple test procedures and smile plots

DESCRIPTION/AUTHOR(S)
This package contains the programs multproc, smileplot and smileplot7.
multproc inputs a data set with 1 observation for each of a set of multiple
significance tests and data on the P-values, and carries out a multiple test
procedure chosen by the user to define a corrected overall critical P-value
for accepting or rejecting the null hypotheses tested. These procedures
may be one-step, step-up or step-down, and may control the familywise error
rate (eg the Bonferroni, Sidak, Holm, Holland-Copenhaver, Hochberg and Rom
procedures) or the false discovery rate (eg the Simes, Benjamini-Liu,
Benjamini-Yekutieli and Benjamini-Krieger-Yekutieli procedures). smileplot,
and its Stata 7 version smileplot7, work by calling multproc and then
creating a smile plot, with data points corresponding to multiple estimated
parameters, the P-values (on a reverse log scale) on the Y-axis, and the
corresponding parameter estimates (or another variable) on the X-axis. There
are Y-axis reference lines at the uncorrected and corrected overall critical
P-values. The reference line at the corrected critical P-value, known as the
parapet line, is interpreted informally as a boundary between data mining and
data dredging. multproc, smileplot and smileplot7 are used on data sets with
one observation per estimated parameter and data on estimates and their
P-values, which may be created using parmby, parmest, statsby or postfile.

Author: Roger Newson
Distribution-Date: 27june2003
Stata-Version: 8

INSTALLATION FILES (click here to install)
multproc.ado
multproc.hlp
smileplot.ado
smileplot.hlp
smileplot7.ado
smileplot7.hlp

--
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/




© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index