5 ms·Caret Package – A Practical Guide to Machine Learning in R49 points by selva86 8y agowodenokoto 8y agoShouldn't storeID be treated as a categorical variable?Iamhisalt 8y agoYou never want to make predictions off an ID.kickout 8y agoYea it should, but don't think its that big of a deal for a tutorial post like thisselva86 8y agoWell Yeah, that’s a good catch. The focus however is on understanding the caret package. So I would ignore that and go on.