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st: New versions of -xcontract-, -xcollapse-, -factext-, -factmerg-, -factref- anf -inccat- on SSC
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"Newson, Roger B" <[email protected]> |
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<[email protected]> |
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Subject |
st: New versions of -xcontract-, -xcollapse-, -factext-, -factmerg-, -factref- anf -inccat- on SSC |
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Date |
Fri, 23 Feb 2007 11:17:37 -0000 |
Thanks to Kit Baum, there are now new versions of the packages
-xcontract-, -xcollapse-, -factext-, -factmerg-, -factref- and -inccat-
available for download from SSC. In Stata, use the -ssc- command to do
this.
The packages -xcontract-, -xcollapse-, -factext-, -factmerg-, -factref-
and -inccat- are described as below on my website, and also described in
Newson (2006), Newson (2004), Newson (2003) and Newson (2002). The new
versions were written because the old versions of some of these packages
were liable to fail under a minority of Windows operating environments,
which generate -tempfile- names with embedded blanks. (The technical
user can see -[P] macro- for more about tempfile names.) I have
attempted to fix this bug in affected packages, and also taken this
opportunity to update the on-line help in these packages and in their
companion packages.
Best wishes
Roger
References
Newson, R. 2006. Resultssets, resultsspreadsheets, and resultsplots
in Stata.
Presented at the 4th German Stata Users' Group Meeting,
Mannheim, 31 March,
2006. Also downloadable from Roger Newson's website at
http://www.imperial.ac.uk/nhli/r.newson.
Newson, R. 2004. From datasets to resultssets in Stata. Presented
at the 10th
United Kingdom Stata Users' Group Meeting, London, 29 June,
2004. Also
downloadable from Roger Newson's website at
http://www.imperial.ac.uk/nhli/r.newson.
Newson, R. 2003. Confidence intervals and p-values for delivery to
the end user.
The Stata Journal 3(3): 245-269. Pre-publication draft
downloadable from Roger
Newson's website at http://www.imperial.ac.uk/nhli/r.newson.
Newson, R. 2002. Creating plots and tables of estimation results
using parmest and
friends. Presented at the 8th UK Stata Users' Group Meeting,
20-21 May, 2002.
Also downloadable from Roger Newson's website at
http://www.imperial.ac.uk/nhli/r.newson.
Roger 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]
www.imperial.ac.uk/nhli/r.newson/
Opinions expressed are those of the author, not of the institution.
------------------------------------------------------------------------
------------------
package xcontract from http://www.imperial.ac.uk/nhli/r.newson/stata8
------------------------------------------------------------------------
------------------
TITLE
xcontract: Make data set of frequencies and percents on disk or in
memory
DESCRIPTION/AUTHOR(S)
xcontract is an extended version of contract. It creates a data
set with one
observation per combination of values of a list of variables in
the existing
data set and new variables containing the frequency and percent of
each
combination, and, optionally, the cumulative frequency and percent
of each
combination. A list of by-variables can be used with xcontract,
and the
percents will then be calculated within by-groups. The output data
set may
either be listed to the Stata log, or saved to a disk file, or
written to the
memory (overwriting any existing data set).
Author: Roger Newson
Distribution-Date: 22february2007
Stata-Version: 8
INSTALLATION FILES (click here to
install)
xcontract.ado
xcontract.hlp
------------------------------------------------------------------------
------------------
(click here to return to the previous screen)
------------------------------------------------------------------------
------------------
package xcollapse from http://www.imperial.ac.uk/nhli/r.newson/stata8
------------------------------------------------------------------------
------------------
TITLE
xcollapse: Make data set of summary statistics on disk or in
memory
DESCRIPTION/AUTHOR(S)
xcollapse is an extended version of collapse, which creates a data
set with
one observation per combination of values of a list of variables
in the
existing data set and new variables containing summary statistics
of other
variables (eg means) in each combination. xcollapse allows the
user to choose
the destination of the output data set, which may either be listed
to the
Stata log, or saved to a disk file, or written to the memory
(overwriting any
existing data set).
Author: Roger Newson
Distribution-Date: 22february2007
Stata-Version: 8
INSTALLATION FILES (click here to
install)
xcollapse.ado
xcollapse.hlp
------------------------------------------------------------------------
------------------
(click here to return to the previous screen)
------------------------------------------------------------------------
-------------------
package factext from http://www.imperial.ac.uk/nhli/r.newson/stata7
------------------------------------------------------------------------
-------------------
TITLE
factext: Extract factor values from a label variable created by
parmest
DESCRIPTION/AUTHOR(S)
factext is used to extract factors (categorical variables) from a
label variable in an output data set created by the parmest
package.
The parmest package creates a data set with 1 obs per estimated
parameter
and data on the parameter estimates, confidence limits, P-values,
and
(optionally) also a variable named label, containing the variable
label for
the X-variable corresponding to the parameter. If the X-variable
is a dummy
variable created by xi, tabulate or John Hendrickx's desmat
package, then the
value of label will be of the form "varname==value", where varname
is a
variable name and value is a numeric or string value. factext
uses this
information to create new factors (categorical variables) with the
specified
varnames and values. These new variables can then be used to
produce tables
and/or plots. factext can be used together with the descsave
package, also
downloadable from SSC or from this website.
Author: Roger Newson
Distribution-Date: 22february2007
Stata-Version: 7
INSTALLATION FILES (click here to
install)
factext.ado
factext.hlp
------------------------------------------------------------------------
-------------------
(click here to return to the previous screen)
------------------------------------------------------------------------
-------------------
package factmerg from http://www.imperial.ac.uk/nhli/r.newson/stata7
------------------------------------------------------------------------
-------------------
TITLE
factmerg: Merge a list of factors to create string variables
DESCRIPTION/AUTHOR(S)
factmerg inputs a list of factors and outputs up to 3 string
variables,
containing, in each observation, the name, variable label and
value,
respectively, of the first factor in the list with a nonmissing
value in
that observation. These string variables can be used in creating
row labels
for output tables and/or plots, possibly using the sencode
package. The input
factors are usually either created in a parmest or parmby output
data set by
using the factext package, or are in a data set created by
concatenating
multiple xcontract output data sets using dsconcat. The sencode,
parmest,
factext, xcontract and dsconcat packages are downloadable from SSC
or from
this website.
Author: Roger Newson
Distribution-Date: 22february2007
Stata-Version: 7
INSTALLATION FILES (click here to
install)
factmerg.ado
factmerg.hlp
------------------------------------------------------------------------
-------------------
(click here to return to the previous screen)
------------------------------------------------------------------------
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package factref from http://www.imperial.ac.uk/nhli/r.newson/stata7
------------------------------------------------------------------------
-------------------
TITLE
factref: Insert new observations with reference values for factors
DESCRIPTION/AUTHOR(S)
factref is used with factext, descsave, parmby and parmest. It
takes, as
input, a data set created by parmby or parmest, in which
categorical
variables (factors) have been created by descsave and factext.
These factors
are variables (numeric or string) representing categorical
variables in the
fitted model, represented by dummy variables such as those created
by xi.
factref adds to that data set a set of additional observations
with reference
values for these factors, copied from the omit characteristic for
each
factor. For each factor, factref creates one reference observation
if there
are non-missing values for the factor and there is no by-variable
list, or
one reference observation for each by-group where there are
non-missing
values of the factor if there is a by-variable list. After the
reference
observations have been added, the user may create a plot or table
of
confidence intervals for factor effects.
Author: Roger Newson
Distribution-Date: 22february2007
Stata-Version: 7
INSTALLATION FILES (click here to
install)
factref.ado
factref.hlp
------------------------------------------------------------------------
-------------------
(click here to return to the previous screen)
*
* 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/
