https://communities.sas.com/t5/SAS-Data-Science/an-error-message-in-survival-node-using-SAS-E-Miner/m-p/428062#M6565 <P>Oh, I have solved the problem. The time ID variables got reversed, that is, start_date has been set as end date, and end date has been set as start date. It is odd. I have changed it and now it is working.</P> Tue, 16 Jan 2018 15:55:25 GMT xzhang 2018-01-16T15:55:25Z https://communities.sas.com/t5/SAS-Data-Science/an-error-message-in-survival-node-using-SAS-E-Miner/m-p/428057#M6564 <P>I used survival node to develop a model, but I got an error message, "All events appear to have occurred in the first time interval. Please check your data or properties." I checked my data and I am sure that not all events appear to have occurred in the first time interval....What has happened? Thank you!</P><P>&nbsp;</P> Tue, 16 Jan 2018 15:46:48 GMT https://communities.sas.com/t5/SAS-Data-Science/an-error-message-in-survival-node-using-SAS-E-Miner/m-p/428057#M6564 xzhang 2018-01-16T15:46:48Z https://communities.sas.com/t5/SAS-Data-Science/an-error-message-in-survival-node-using-SAS-E-Miner/m-p/428062#M6565 <P>Oh, I have solved the problem. The time ID variables got reversed, that is, start_date has been set as end date, and end date has been set as start date. It is odd. I have changed it and now it is working.</P> Tue, 16 Jan 2018 15:55:25 GMT https://communities.sas.com/t5/SAS-Data-Science/an-error-message-in-survival-node-using-SAS-E-Miner/m-p/428062#M6565 xzhang 2018-01-16T15:55:25Z