How do I calculated S(t) at a particular time t using proc phreg. Proc phreg data = a.input; model tenure * target (0) =a1 a2 a3/ selection = stepwise ties = efron; baseline out = out1 covariates = sample survival = s; run; I the above example if I pass covariates = sample it gives me survival estimates for all possible values of t present in a.input. My datasets are very huge and I am getting memory error when I try to score. I need to calculated s(30) only for my dataset "sample". ... View more

I read about The Split Procudre in SAS 9.1.3. I used the procedure and gives me correct output table with no errors or warnings in logs. However the keywords like Target, Score which are required for this proc comes in red in my editor window. Is there any specific reason for this? Is this proc no longer supported by higher versions of SAS or its still in ues? Please help me out with this. ... View more