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2012 May 02
1
error fitting coxph model
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