Thanks to Kit Baum, there is a new version of the -eclplot- package
downloadable from SSC. In Stata, use the -ssc- command to find out more and
to download.
-eclplot- (described as below on my website) is a unified Stata 8 program
for making confidence interval plots. The new version adds a new option
supby(varname [, suboptions])
which allows the user to create superimposed multiple confidence interval
plots with different styles, one for each value of the variable -varname-.
For instance, the user can create plots where confidence intervals for
female parameters are displayed as circles with whiskers and confidence
intervals for male parameters are displayed as squares with whiskers. Or
the user can create a Cochrane forest plot for a meta-analysis, in which
the confidence intervals for individual studies are squares with whiskers
(weighted by study size) and the summary confidence interval is a diamond
with whiskers (weighted by the sum of study sizes). The new option is
accessible both in command mode and in dialog mode.
I would like to thank John Moran for suggesting that something like the
-supby()- option might be a good idea, and Jean Marie Linhart, James
Hassell and Vince Wiggins of StataCorp for all their helpful advice.
Best wishes
Roger
-----------------------------------------------------------------------------------
package eclplot from http://www.kcl-phs.org.uk/rogernewson/stata8
-----------------------------------------------------------------------------------
TITLE
eclplot: Horizontal and vertical confidence interval plots
DESCRIPTION/AUTHOR(S)
eclplot creates a plot of estimates with lower and upper confidence
limits
on one axis against another numeric variable on the other axis. The
estimates
and lower and upper confidence limits are stored in three variables,
in a
data set with one observation per confidence interval to be plotted.
Data
sets with such variables may be created manually (using a spreadsheet),
or using the parmest package, or using statsby or postfile in
official Stata.
The user has a choice of plotting the confidence intervals
horizontally or
vertically, a choice of plot styles for the estimates, and a choice
of range
plot styles for the confidence intervals. It is also possible to overlay
the confidence interval plot with other plots using the plot() option,
and to overlay.multiple superimposed confidence interval plots using the
supby() option. eclplot may be used either as a command or through a
dialog.
Author: Roger Newson
Distribution-Date: 05april2005
Stata-Version: 8
INSTALLATION FILES (click here to install)
eclplot.ado
eclplot.hlp
eclplot.dlg
eclplot_98s.dlg
-----------------------------------------------------------------------------------
(click here to return to the previous screen)
--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
Division of Asthma, Allergy and Lung Biology
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: [email protected]
Website: http://phs.kcl.ac.uk/rogernewson/
Opinions expressed are those of the author, not the institution.
