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st: Survival analysis: Finding Cut-Points for indipendent predictors
I am going throught the problem to figure out the best cut-points for indipendent predictors in
Cox proportional Hazards models. I have read the following article
that looks promising. I have a problem though, to replicate the way the authors showed to find out
cut-points (the paper is really SAS-based):
1) Given a predictor (i.e. age) how can i plot the log likelihood obtained with stcox age vs actual values of age in my dataset ?
2) How can I obtain a table where, for each age value, is reported the Lk ? (Contal and O'Quingley's method).
Thank you in advance, as always
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