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cirrhosis
2004 Jun 11
1
ROC for threshold value, biometrics
Hello,
I am just a beginner of R 1.9.0.
I try to construct a predictive score for the development of liver
cancer in cirrhotic patients. So dependant variable is binanry (cancer
yes or no). Independant variables are biological data. The aim is to
find out a cut-off value which differentiate (theoratically) from
normal to pathological state for each biological data.
How can I step in procedue to get a cut-off value (thres...