This syntax program is an applied complement to Veall and Zimmermann (1994), Menard (2000), and Smith and McKenna (2013) and produces nine pseudo R2 indices, not readily accessible in statistical software such as SPSS, which are used to describe the results from binary logistic regression analyses.
Walker, David A. and Smith, Thomas J.
"Nine Pseudo R^2 Indices for Binary Logistic Regression Models,"
Journal of Modern Applied Statistical Methods: Vol. 15
, Article 43.
Available at: http://digitalcommons.wayne.edu/jmasm/vol15/iss1/43