[R] require R code for calculating nagelkerke pseudo r2

[Ben Bolker]

ramakanth reddy <ramakanth1387 <at> gmail.com> writes:

> I want to perform nagelkerke pseudo r2 test ...
> can someone tell me is there any r function or package available for doing
> it.
> and also the sample input data how it should be.


  How about

library(sos)
findFn("nagelkerke")

?