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an error message in survival node using SAS E Miner

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Occasional Contributor
Posts: 12

an error message in survival node using SAS E Miner

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!

 

Occasional Contributor
Posts: 12

Re: an error message in survival node using SAS E Miner

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.

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