# rpart는 클래식한 CART를 약간 수정한 버전 # Recursive Partitioning and Regression Trees # class target에 대해 gini를 사용한 split을, # 연속형이면 regression tree를 생성 data("USArrests") # statistics about violent crime rates by us state. # Murder: Murder arrests (per 100,000) # Assault: Assault arrests (per 100,000) # UrbanPop: Percent urban popu..