st: New versions of -sencode- and -sdecode- on SSC

["Roger B. Newson" <r.newson@imperial.ac.uk>]

Thanks once again to Kit Baum, new versions of the -sencode- and 
-sdecode- packages are now available for download from SSC. In Stata, 
use the -ssc- command to do this, or -adoupdate- if you alreaady have 
old versions of these packages.

The -sencode- and -sdecode- packages are described as below on my 
website. The new versions are still in Stata Versions 10 and 11, 
respectively. However, the online help for both packages now contains 
hypertext to my presentation at the 2013 Stata User Meeting on -sencode- 
and -sdecode- (Newson, 2013), which contains some useful tips about the 
use of -sencode- and -sdecode- together.

Best wishes

Roger

References

Newson, R. B.  2013.  Creating factor variables in resultssets and other 
datasets.  Presented at the 19th United Kingdom Stata Users' Group 
Meeting, 12–13 September, 2013. Download from
http://ideas.repec.org/p/boc/usug13/01.html

--
Roger B Newson BSc MSc DPhil
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: r.newson@imperial.ac.uk
Web page: http://www.imperial.ac.uk/nhli/r.newson/
Departmental Web page:
http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/

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

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package sencode from http://www.imperial.ac.uk/nhli/r.newson/stata10
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TITLE
      sencode: Encode a string variable non-alphanumerically into a 
numeric variable

DESCRIPTION/AUTHOR(S)
      sencode is an extended version of encode. It takes, as input, a 
string
      variable, and generates, as output, a numeric variable, with 
value labels
      corresponding to values of the string variable. The output 
numeric variable
      may replace the input string variable or be generated as a new 
variable.
      sencode orders the numeric values corresponding to string values 
in the
      sequential order of appearance in the input string variable in 
the data set,
      or in another order specified by the user, instead of ordering 
them in
      alphanumeric order of the string value, as encode does. The 
mapping from
      numeric code values to string labels may be one-to-one (coded in 
order of
      first appearance of the string value) or many-to-one (coded in each
      observation by the position of that observation in the data set, 
or in the
      user-specified ordering).

      Author: Roger Newson
      Distribution-Date: 20september2013
      Stata-Version: 10

INSTALLATION FILES                                  (click here to install)
      sencode.ado
      sencode.sthlp
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(click here to return to the previous screen)

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TITLE
      sdecode: Decode a numeric variable to string, formatting 
unlabelled values

DESCRIPTION/AUTHOR(S)
      sdecode ("super decode") creates an output string variable with
      values from the input numeric variable varname, using labels if
      present and formats otherwise.  The output string variable may either
      replace the input numeric variable or be generated as a new variable
      named newvar.  Unlike decode, sdecode creates an output string
      variable containing the values of the input variable as output by the
      tabulate command and other Stata output, instead of decoding all
      unlabelled input values to missing.  sdecode is especially useful if
      a numeric variable has value labels for some values but not for
      others.  msdecode is a multivariate version of sdecode, which inputs
      a list of numeric or string variables and (optionally) a list of
      delimiters, and creates a single string variable, containing the
      concatenated values of all the input variables, decoded if necessary
      and separated by the delimiters if provided.

      Author: Roger Newson
      Distribution-Date: 20september2013
      Stata-Version: 11.0

INSTALLATION FILES                                  (click here to install)
      sdecode.ado
      sdecode.sthlp
      msdecode.ado
      msdecode.sthlp
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(click here to return to the previous screen)
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