[R] Survfit: why different survival curves but same parameter estimates?
therneau at mayo.edu
Mon Jan 17 15:03:18 CET 2011
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I'm trying to estimate a Cox proportional hazard model with time-varying
covariates using coxph. The parameter estimates are fine but there is
something wrong with the survival curves I get with survfit (results are
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This sounds wrong to me also. Could you give more information so that I
can verify the issue? (See the posting guide).
What version of R and of the survival package?
Is is possible to send me a copy of the example that fails?
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