I am working with attribute incremental learning ( or virtual concept drift) which is every time when a new feature will be available for a real-time dataset (i.e. any online auction dataset) a classifier will add that new feature with the existing features in a dataset and classify the new dataset (with previous features and new features) incrementally. I know that we can convert a stationary classifier to an incremental classifier in python. However, I could not find any detail information on how to add the new features in an incremental classifier continuously in real-time. It would be great if anyone could give me some insight on this .