DIMACS TR: 93-68
Generalization of the Tetrad Representation Theorem
Authors: Glenn Shafer, Alexander Kogan, and Peter Spirtes
ABSTRACT
The tetrad representation theorem, due to Spirtes, Glymour, and
Scheines (1993), gives a graphical condition necessary and sufficient
for the vanishing of tetrad differences in a linear correlation structure.
This note simplifies their proof and generalizes the theorem. This
generalization can strengthen procedures used to search for structural
equation models for large data sets.
Paper available at:
ftp://dimacs.rutgers.edu/pub/dimacs/TechnicalReports/TechReports/1993/93-68.ps
DIMACS Home Page