IGENERATE: Stata module to apply a variety of coding schemes, including weighted effect coded interactions

Alexander Schmidt-Catran

Statistical Software Components from Boston College Department of Economics

Abstract: igenerate generates new indicator variables from categorical predictors, including weighted effect coded interactions. Note that Stata’s built-in command contrast does this job for most coding schemes and I recommend using contrast for most situations in applied research. igenerate does, however, construct weighted effect coded interactions, something contrast cannot do. For more information on this approach see the paper “Weighted effect coded interaction effects: a novel moderated regression model for observational studies” by Te Grotenhuis et al. /2016) in the International Journal of Public Health. Furthermore, igenerate might be useful for didactical purposes.

Language: Stata
Requires: Stata version 12.1
Keywords: indicator variables; categorical data; weighted effects (search for similar items in EconPapers)
Date: 2016-10-22
Note: This module should be installed from within Stata by typing "ssc install igenerate". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/i/igenerate.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/i/igenerate.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/b/bmi_sample.dta sample data file (application/x-stata)

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