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st: New versions of -estparm- and -addinby- on SSC
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From |
"Newson, Roger B" <[email protected]> |
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To |
"statalist" <[email protected]> |
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Subject |
st: New versions of -estparm- and -addinby- on SSC |
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Date |
Wed, 7 May 2008 09:57:49 +0100 |
Thanks to Kit Baum, new versions of the -estparm- and -addinby- packages
are now available for download from SSC. In Stata, use the -ssc- command
to do this. The -estparm- and -addinby- packages are described on SSC as
indicated below my signature.
The new -estparm- package has an improved example set in the .sthlp
file. There is now an example using the -estparmtest- module with
-statsby- (using the -basepop()- option of -statsby- to prevent
-matsize- overflow). I have also modified the other examples so that
they now work if the user has set the option
set varabbrev off
in Stata. I would like to thank Friedrich Huebler for alerting me to the
fact that they didn't work previously under this setting.
The new -addinby- package has a new option -unmatched()-, which
specifies a course of action regarding observations in the master
dataset not matched by the foreign key in the using dataset, and which
can be set to -drop-, -keep- or -fail-. The default is -fail-, causing
-addinby- to fail with an error message if there are any unmatched
observations in the master dataset.
Best wishes
Roger
Roger B Newson
Lecturer in Medical Statistics
Respiratory Epidemiology and Public Health Group
National Heart and Lung Institute
Imperial College London
Royal Brompton campus
Room 33, Emmanuel Kaye Building
1B Manresa Road
London SW3 6LR
UNITED KINGDOM
Tel: +44 (0)20 7352 8121 ext 3381
Fax: +44 (0)20 7351 8322
Email: [email protected]
Web page: www.imperial.ac.uk/nhli/r.newson/
Departmental Web page:
http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/pop
genetics/reph/
Opinions expressed are those of the author, not of the institution.
. ssc desc estparm
------------------------------------------------------------------------
------------------------------------------------------------------------
---------------------
package estparm from http://fmwww.bc.edu/repec/bocode/e
------------------------------------------------------------------------
------------------------------------------------------------------------
---------------------
TITLE
'ESTPARM': module to save results from a parmest resultsset and
test equality
DESCRIPTION/AUTHOR(S)
estparm is an inverse of parmest. It inputs 2 or 3
variables in the varlist, containing parameter estimates,
standard errors, and (optionally) degrees of freedom. It
saves a set of estimation results for the parameters,
assuming that the parameter estimates are statistically
independent. estparmtest is an extended version of estparm,
which also performs a chi-squared or F test of the
hypothesis that all these parameters are equal. estparmtest can
be used for performing interaction tests, using data from
regression models for multiple subsets, stored in a parmest
or parmby output dataset (or resultsset).
KW: data manipulation
KW: parameters
KW: F test
KW: interaction test
Requires: Stata version 10.0
Distribution-Date: 20080506
Author: Roger Newson, National Heart and Lung Institute at
Imperial College London
Support: email [email protected]
INSTALLATION FILES (type net install
estparm)
estparm.ado
estparm.sthlp
estparm_p.ado
estparmtest.ado
estparmtest.sthlp
------------------------------------------------------------------------
------------------------------------------------------------------------
---------------------
(type -ssc install estparm- to install)
. ssc desc addinby
------------------------------------------------------------------------
------------------------------------------------------------------------
---------------------
package addinby from http://fmwww.bc.edu/repec/bocode/a
------------------------------------------------------------------------
------------------------------------------------------------------------
---------------------
TITLE
'ADDINBY': module to add in data from a disk dataset using a
foreign key
DESCRIPTION/AUTHOR(S)
addinby is a "cleaner" alternative version of merge, designed
to reduce the lines of code in Stata do-files. It adds variables
and/or values to existing observations in the dataset currently
in memory (the master dataset) from a Stata-format dataset stored
in the file filename (the using dataset), using a foreign key of
variables specified by the keyvarlist to identify observations in
the using dataset. The using dataset must be sorted by the
variables in the keyvarlist, and these variables must identify
observations in the using dataset uniquely. Unlike -merge-,
-addinby- always preserves the master dataset in its original
sorting order, and does not add any merge-status variables or
additional observations. However, addinby checks that the foreign
key uniquely identifies observations in the using dataset, and
may optionally check that there are no unmatched observations in
the master dataset, and/or check that there are no missing values
in the foreign key variables in the master dataset.
KW: data manipulation
KW: key
KW: foreign key
KW: merge
Requires: Stata version 10.0
Distribution-Date: 20080506
Author: Roger Newson, National Heart and Lung Institute at
Imperial College London
Support: email [email protected]
INSTALLATION FILES (type net install
addinby)
addinby.ado
addinby.sthlp
------------------------------------------------------------------------
------------------------------------------------------------------------
------------------
(type -ssc install addinby- to install)
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