[R] Making Gehan-Breslow test for Survival data

[José Ignacio Bustos Melo]

Hi all,

The survivals functions can be tested by the Log-rank test and others, for
example the Gehan-Breslow. The graham breslow work with the alpha values.

But I don't know how is the Gehan-Breslow test with R. Somebody know a
type function?.. or other suggestions?  Any help will be really
appreciated

José Bustos
Marine Biologist
Master Apllied Stat Program
University of Concepción