Hi @WenjianBI , thank you for your nice and useful package.
I was wondering if it is possible and reliable to use SPAcox for a frailty model where, along with the normal covariates, I add a random effect for the center in which the samples were collected.
Since the null model is fitted with the survival package, I don't see any problem there, but I don't know for the second step.
Thank you
Hi @WenjianBI , thank you for your nice and useful package.
I was wondering if it is possible and reliable to use SPAcox for a frailty model where, along with the normal covariates, I add a random effect for the center in which the samples were collected.
Since the null model is fitted with the
survivalpackage, I don't see any problem there, but I don't know for the second step.Thank you