Hello all,
I am trying to use stepwise procedure to select covariates in Cox model
and use bootstrap to repeat stepwise selection, then record how many
times variables are chosen by step() in bootstrap replications. When I
use step() (or stepAIC) to do model selection, I got errors. Here is
On Mon, 24 Oct 2005, Li, Jia wrote:
Hello all,
I am trying to use stepwise procedure to select covariates in Cox model
and use bootstrap to repeat stepwise selection, then record how many
times variables are chosen by step() in bootstrap replications. When I
use step() (or stepAIC) to do
