triplot produces a triangular plot of the three variables leftvar, rightvar and botvar, which are plotted on the left, right and bottom sides of an equilateral triangle. Each should have values between 0 and some maximum value (default 1) and the sum of the three variables should be equal to that maximum (within rounding error). Most commonly, three fractions or proportions add to 1, or three percents add to 100. The constraint that the three variables have a constant sum means that there are just two independent pieces of information. Hence it is possible to plot observations in two dimensions. Triangular plots appear under various names in the literature, including trilinear, triaxial, three-element maps, ternary, reference triangles, percentage triangles, mixture, facies, barycentric. This is version 2.2.0 of the software written for Stata 8. The previous version, written for Stata 6, is also included as triplot6.
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Publisher Info
Software component provided by Boston College Department of Economics in its series Statistical Software Components with number
S342401.
Size: Programming language: Stata Requires: Stata version 9.0 (6.0 for triplot6) Date of creation: 04 May 1998 Date of revision:
09 Feb 2009 Handle: RePEc:boc:bocode:s342401
Note: This module may be installed from within Stata by typing "ssc install triplot". Windows users should not attempt to download these files with a web browser. Contact details of provider: Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA Phone: 617-552-3670 Fax: +1-617-552-2308 Email: Web page: http://fmwww.bc.edu/EC/ More information through EDIRC