Thanks for your reply, but I am not sure if I understand your reply right:
 
are you saying the "geneid" in  your post is a vector of all 22283 genes? I
want to do cox fit to each and everyone of the 22283 genes and need a way to
summarize it -- to do that, I need to know how to parse the result for each
coxph result.
 
Thanks
Hao

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