Hi,
I am using coxph from the survival package to fit a large model
(100,000 observations, ~35 covariates) using both ridge regression (on
binary covariates) and penalized splines (for continuous covariates).
In fitting, I get a strange error:
Error in if (abs((y[nx] - target)/(y[nx - 1] - target)) > 0.6)
doing.well <- FALSE else doing.well <- TRUE :
missing value where TRUE/FALSE needed
Unfortunately, I can't reproduce this error without handing over my
entire dataset, but I thought it would be worth checking if anyone had
any insight. I should note that the outcome that I'm using has almost
everyone having an event (~98,000 events out of 100,000). I have fit
other models like this with no problem, but on one particular dataset
it fails.
Thanks!
Jessica Myers
Instructor in Medicine
Brigham and Women's Hospital
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