Regarding my prev question on train and test set, I can’t use direct linear regression as data which am using is comparison of terms. For eg: Train set data: Product Search Relevance abcd defg 1.3 Here it tell relevance of the terms between Product and Search. Relevance can vary from 1 to 5 points. In test I have data Product and Search and I want to predict relevance based on the train set. Any Ideas? Am good with SAS and R Programming.