“…Clusterwise regression analysis is extensively discussed in the theoretical literature (see, for example, [20][21][22]29,30,60,40,31,32,35,25,41,45,51,55,17,33,61,26,27,42,44,46,47,52,54,62,58]), and furthermore, finds application in several fields, such as market segmentation and business, socio-economics, biology, engineering, and so on (see, for instance [2,20,40,57]). …”