[R] variables selection in Aalen and Cox model

[Luis Guillermo Diaz Monroy]

   Dear members of R community,

   I  want  to know about the R procedures (or routines) to carry out the
   selection of covariates in an Aalen or
   cox model, respectively.

   Thanks a lot
   Luis Guillermo Díaz Monroy
   Profesor Asociado Departamento de Estadística
   Universidad Nacional de Colombia

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