In reply to Tim Morris.

Hi Tim,
It's really great to hear from you and to get your opinions. Thank you for the comments, especially the clarification about centiles. I hope to write a future post that describes your ADMEP methodology and to demonstrate how to use SAS to implement the example in Section 7 (proportional hazards simulation) in your paper. I think it is important to spread the word about ADMEP to practicing statisticians as well as researchers. Best wishes!