#-*- coding: utf-8 -*-#餐饮销量数据统计量分析import pandas as pdcatering_sale = 'catering_sale.xls' #餐饮数据data = pd.read_excel(catering_sale, index_col = '日期') #读取数据，指定“日期”列为索引列data = data[(data['销量'] > 400)&(data['销量'] < 5000)] #过滤异常数据statistics = data.describe() #保存基本统计量statistics.loc['range'] = statistics.loc['max']-statistics.loc['min'] #极差statistics.loc['var'] = statistics.loc['std']/statistics.loc['mean'] #变异系数statistics.loc['dis'] = statistics.loc['75%']-statistics.loc['25%'] #四分位数间距print(statistics)
