I am fitting a model using survreg and then I got the following result:
Scale= 1.165371 Loglik(model)= -4117.3 Loglik(intercept only)= -4162.5 Chisq= 90.53 on 10 degrees of freedom, p= 4.2e-15 n= 1000
Now I want to get the p (4.2e-15) and used the following code:
signif(1 - pchisq(summary(srFit)$chi, summary(srFit)$df), 2)
and the result is 3.9e-14. I think I'm calculating p correctly but not sure why the values is different.