I'm new to R and trying to do some model building using Cox proportional hazards and nomogram modelling. I'm having trouble finding that in the survival package, or finding something that would help me understand and compare the fit of my models.
I have followed the instructions in
Building a Nomogram for Survey-Weighted CoxModels Using R, but somehow, it did not work properly in my data.
Is there any suggestion for more simple building steps? thank you.