ILR: Stata module to compute a isometric log-ratio (ILR) transformation of a set of variables

Giacomo Zanello ()
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Giacomo Zanello: University of Reading

Statistical Software Components from Boston College Department of Economics

Abstract: ilr computes a isometric log-ratio (ILR) transformation on a set of variables (n>2). ILR transformation is a mathematical technique used in compositional data analysis. Compositional data are parts of a whole and carry relative information, typically constrained by a constant sum, such as 100% or 1440 (e.g. the minutes in a day). This type of data often arises in economics, environmental science, ecology, and other fields.

Language: Stata
Requires: Stata version 10
Keywords: isometric log ratio; compositional data (search for similar items in EconPapers)
Date: 2024-02-03
Note: This module should be installed from within Stata by typing "ssc install ilr". 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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http://fmwww.bc.edu/repec/bocode/i/ilr.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/i/ilr.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/g/gdp.dta supplementary data file (application/x-stata)

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Persistent link: https://EconPapers.repec.org/RePEc:boc:bocode:s459290

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