Displaying 2 results from an estimated 2 matches for "thereau".
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therneau
2009 Mar 14
1
obtaining the values for the hazard function in a cox regression
Hello ,
I am hoping for some advice regarding obtaining the values for the
hazard function in a cox regression that I have undertaken. I have a
model in the following form, analysed with the package survival (v.
2.34-1) and a log-log plot obtained using Design (v. 2.1-2).
For two variables, the lines in the survival curves crossed. The
statistician I been obtaining advice from (who does not
2008 Nov 21
1
Discrepancy in the regression coefficients for Cox regression - PBC data set
Hi,
When I run the following Cox proportional hazards model on the Mayo clinic's
PBC data set (given in the "survival" package), the regression coefficients
do not agree with the results presented in Table 4.6.3 (p. 195) of Fleming &
Harrington's book.
library(survival)
data(pbc)
ans.cox <- coxph(Surv(time, status) ~ log(bili) + log(alb) + age +
log(protime) +