Several responders have given input on how to find and read the code for
summary.coxph and print.coxph, or using str() to examine the output of a
coxph object.
An even better starting place would be the documentation (yes there is some).
help(coxph) gives a page that contains:
"Value: an object of class coxph. See 'coxph.object' for details."
and help(coxph.object) gives a description of all the components.
Terry Therneau
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