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HR=mycph(Surv(DFS, RECUR_YN==1)~.-OPTIME-OPFROMDT-OPDATE-OPDUR-PIDS-RECUR_D-PATHOLOGY-DEATH_D-LASTDD-RECUR_F_DATE-DEATH_F_DATE-RECUR_YN-DEATH_YN, data=dat)

 

> HR=mycph(Surv(DFS, RECUR_YN==1)~.-OPTIME-OPFROMDT-OPDATE-OPDUR-PIDS-RECUR_D-PATHOLOGY-DEATH_D-LASTDD-RECUR_F_DATE-DEATH_F_DATE-RECUR_YN-DEATH_YN, data=dat)

 

 mycph : perform coxph of individual expecting variables

 

 Call: Surv(DFS, RECUR_YN == 1) ~ . - OPTIME - OPFROMDT - OPDATE - OPDUR - , data= dat     PIDS - RECUR_D - PATHOLOGY - DEATH_D - LASTDD - RECUR_F_DATE - , data= dat     DEATH_F_DATE - RECUR_YN - DEATH_YN, data= dat 

 

Error in .subset2(x, i, exact = exact) : no such index at level 1

 

mycph 를 사용할 때 빼주어야 하는 변수들이 어떤 것인지 여쭤보고 싶습니다. 제가 뺀 항목들이 문제가 있는 것인지요?