Fits a minimal Cox model to estimate hazard ratio with reduced overhead.
Disables robust variance, model matrix storage, and other extras for speed.
Usage
get_split_hr_fast(df, cox_init = 0)
Arguments
- df
data.frame or data.table with Y, Event, Treat columns.
- cox_init
Numeric. Initial value for coefficient (default 0).
Value
Numeric. Estimated hazard ratio, or NA if model fails.