https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21552#M668 In PHREG or LIFEREG. Both do 'time to event' analysis and it is up to you to decide what an appropriate event is. They were developed in the context of survival, where the natural evenit is a 'failure,' but that is not a necessary condition to use the procedure. Tue, 24 Nov 2009 14:11:52 GMT Doc_Duke 2009-11-24T14:11:52Z https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21551#M667 How can I perform a time to success (not to failure) analysis using SAS?<BR /> <BR /> Thanks Tue, 24 Nov 2009 13:59:01 GMT https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21551#M667 deleted_user 2009-11-24T13:59:01Z https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21552#M668 In PHREG or LIFEREG. Both do 'time to event' analysis and it is up to you to decide what an appropriate event is. They were developed in the context of survival, where the natural evenit is a 'failure,' but that is not a necessary condition to use the procedure. Tue, 24 Nov 2009 14:11:52 GMT https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21552#M668 Doc_Duke 2009-11-24T14:11:52Z https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21553#M669 I tried to use PHREG, but the Probability plot presents a curve that starts at “1” and decreases. In fact I need a curve that starts at “0” and increases.<BR /> <BR /> Thanks again. Tue, 24 Nov 2009 14:24:57 GMT https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21553#M669 deleted_user 2009-11-24T14:24:57Z https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21554#M670 The analysis part is correct, you want a modified picture. Just output the data for the survival curve into a dataset, subtract the probability from 1, and plot it again. GPLOT has the options to do a step function. Tue, 24 Nov 2009 14:55:38 GMT https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21554#M670 Doc_Duke 2009-11-24T14:55:38Z https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21555#M671 Incredible simple! Thanks a lot! Tue, 24 Nov 2009 14:57:20 GMT https://communities.sas.com/t5/Statistical-Procedures/Time-to-success-analysis/m-p/21555#M671 deleted_user 2009-11-24T14:57:20Z