?? ???? ??????? ??????? ??? ??? ?? ?????? ?????? ??? ??????? ?????????. ???? ????? ?????? ??? ?????? ?? ???? ????????? ????? ????? ????? ?????? ??????????.Cross-validation. By splitting the information into numerous elements, we can easily Examine if an analysis (similar to a equipped design) based on a single A part of the data generalizes to a di