Cox-Snell and Naglekerke R-squares

[Halg]

Hello, I am not quite sure how to get Cox-Snell and Naglekerke R-square values in logistic regression.  Please advise.   Thank you.

[stat_sas]

In the Testing Global Null Hypothesis: BETA=0 output table , "RSquare" is Cox and Snell R2 and "Max-rescaled RSquare" is Nagelkerke R2

[StatDave]

Specify the RSQUARE option in the MODEL statement of PROC LOGISTIC to get both.