@Adrián_cyc wrote:
The problem is that this model has been working well during years, this problem has been going on for two months, we had never had this problem. When the model was developed, the WOE and the IV values for each variable seemed correct.
Quite often when something has been working reasonably well and then stops you might want to investigate something other than the model code.
Did the data collection methods change?
Did any variables change meaning but use the same values?
Did precision of an instrument change?
Did the number of records involved for any sort of grouping variable(s) change? Or change for just some grouping variable values?
Does anyone examine the logs of the step that brings the data into SAS? Are there warnings that weren't there before? Data conversion notes?
It may help to actually post an example of the model code you are using. Someone familiar with the proc may be able to point out places
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