[R] Cox's regression analysis with Left truncated data
therneau at mayo.edu
Tue Jul 26 14:30:27 CEST 2011
Surv(entry-time, last-follow-up-time, status-at-last-follow-up)
This works in survfit, coxph, and coxme. Left truncation is currently
not implemented for survreg.
In your case both times above would be "time since event".
------- begin included message ------
I have a fairly simple question. I would like to use the survival
to perform an analysis on data where an event can have occurred before
individuals were recruited into a study. I'm not sure how to do this
the Surv() function. I would have a date of an event and then the
date would be after that. How do I put these two dates into the
More information about the R-help