import pandas as pd sales = pd.read_csv("sales.csv") pd.set_option('display.width',300) pd.set_option('display.max_rows',None) pd.set_option('display.max_columns',None) #cut:按照数值进行分割,等间隔;qcut:按照数据分布进行分割,等频率 R=pd.qcut(sales.recency,4,["4", "3", "2", "1"]).astype('str') F=pd.qcut(sales.frequency,4,...