I am using the rcorr.cens function from the Hmisc package and the
time-dependent ROC curve obtained using tdrocc in the survcomp package.
I understand that the C statistic from rcorr.cens has to be subtracted from 1
if high values of the risk variable lower survival.
Given that I wonder what the connection is between that C statistic and the AUC
from the tdrocc object. Are they expected to be the same ?
Many thanks in advance
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