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PRODVARS: Stata module to create product variables for two lists of input variables

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Author Info

  • Roger Newson

    ()
    (National Heart and Lung Institute at Imperial College London)

Abstract

prodvars inputs two variable lists, known as the left variable list and the right variable list. It produces as output a list of generated variables, one for each pair of variables from the left and right variable lists, each with a variable names derived from the names of the pair of input variables, and values equal to the products of the values of the two input variables. Optionally, the generated variables may also have variable labels derived from the variable labels, or variable names, of the input variables. prodvars is useful for calculating variables for the design matrix of a multiple-intercept model.

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File URL: http://fmwww.bc.edu/repec/bocode/p/prodvars.ado
File Function: program code
Download Restriction: no

File URL: http://fmwww.bc.edu/repec/bocode/p/prodvars.sthlp
File Function: help file
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Bibliographic Info

Software component provided by Boston College Department of Economics in its series Statistical Software Components with number S456952.

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Programming language: Stata
Requires: Stata version 10.0
Date of creation: 03 Aug 2008
Date of revision: 09 Feb 2011
Handle: RePEc:boc:bocode:s456952

Note: This module should be installed from within Stata by typing "ssc install prodvars". Windows users should not attempt to download these files with a web browser.
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Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA
Phone: 617-552-3670
Fax: +1-617-552-2308
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Web page: http://fmwww.bc.edu/EC/
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Web: http://repec.org/docs/ssc.php

Related research

Keywords: data manipulation; products;

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