3.3 用户活跃度分析;3.4 用户活跃期分析。 # -*- coding: utf-8 -*- ''' 第3关:利用pandas实现数据统计分析 ''' import numpy as np import pandas as pd master = pd.read_csv("Training_Master.csv",encoding='gbk') user = pd.read_csv("Training_Userupdate.csv",encoding='gbk') log = pd...