02-27-2015 01:40 PM
I built a logistic regression model and then validated it on the validation data set. I get a good increase in lift for the first 6 deciles(increasing order from 60 to 10). But then , from 6th to 7th decile the lift drops steeply and again increases from the 7th decile to the 10th decile. What could be the reason for such a behaviour? How can I get a uniform increasing lift? Is there any solution to handle this problem?