On Nov 19, 2010, at 12:32 PM, Shi, Tao wrote:

Hi list,

I was trying to use "predict.coxph" to calculate martingale residuals on a test
data, however, as pointed out before

What about resid(fit) ? It's my reading of Therneau & Gramsch [and of help(coxph.object) ] that they consider those martingale residuals.


http://tolstoy.newcastle.edu.au/R/e4/help/08/06/13508.html

predict(mycox1, newdata, type="expected") is not implemented yet. Dieter suggested to use 'cph' and 'predict.Design', but from my reading so far, I'm not
sure they can do that.

Do you other ways to calculate martingale residuals on a new data?

Thank you very much!

...Tao


David Winsemius, MD
West Hartford, CT

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