what is the best way to do a ROC in r what is a c statistic in logistic regression can cph be used for a roc what regression model to use for roc how does cox based survival analysis work what does cph in logistic model mean how to do a roc analysis with cox regression cph for roc analysis how to do a cox ROC analysis how to do roc in r how to do a roth analysis in r what is the correct roc for survival how to do a ROC analysis in r what is the cph for a survival curve how to do the roc analysis how to run cox based r how to do a cox model in r cox roc analysis example which r regression model used the survival roc? what is cox and roc in r