https://communities.sas.com/t5/Mathematical-Optimization/how-to-validate-in-PROC-PHREG-with-time-dependent-variables/m-p/64784#M475 We can not use BASELINE statement if we got time-depenedent variables, so what should we do for the validation? Fri, 05 Dec 2008 16:17:15 GMT deleted_user 2008-12-05T16:17:15Z https://communities.sas.com/t5/Mathematical-Optimization/how-to-validate-in-PROC-PHREG-with-time-dependent-variables/m-p/64784#M475 We can not use BASELINE statement if we got time-depenedent variables, so what should we do for the validation? Fri, 05 Dec 2008 16:17:15 GMT https://communities.sas.com/t5/Mathematical-Optimization/how-to-validate-in-PROC-PHREG-with-time-dependent-variables/m-p/64784#M475 deleted_user 2008-12-05T16:17:15Z https://communities.sas.com/t5/Mathematical-Optimization/how-to-validate-in-PROC-PHREG-with-time-dependent-variables/m-p/64785#M476 Hi, did you get answer for this problem? I have the same problem too. I wonder if there is a way to handle this. Thanks! Wed, 04 Mar 2009 18:54:46 GMT https://communities.sas.com/t5/Mathematical-Optimization/how-to-validate-in-PROC-PHREG-with-time-dependent-variables/m-p/64785#M476 jf 2009-03-04T18:54:46Z