This method calculates the Coefficient of Discrimination
for generalized linear (mixed) models for binary data. It is
an alternative to other Pseudo-R-squared values
like Nakelkerke's R2 or Cox-Snell R2.
D Coefficient of Discrimination, also known as
Tjur's R-squared value.
The Coefficient of Discrimination
D can be read like any
other (Pseudo-)R-squared value.
Tjur T (2009) Coefficients of determination in logistic regression models - a new proposal: The coefficient of discrimination. The American Statistician, 63(4): 366-372
r2 for Nagelkerke's and Cox and Snell's pseudo
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