摘要：
import pandas as pd import matplotlib.pyplot as plt import math import numpy as np #sales[sales.isna().values==True] def pin_lv(arr): return arr.count()/sales.describe().loc['count'] sale_pat... 阅读全文
摘要：
#贡献度分析 import pandas as pd import matplotlib.pyplot as plt import math import numpy as np plt.rcParams['font.sans-serif'] = ['SimHei'] #用来正常显示中文标签 plt.rcParams['axes.unicode_minus'] = False #用来正常显示负... 阅读全文