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1multi-index的多层级分类汇总 有三种方法: 方法一:groupby 示例如下,比如,需要在,大类、细分1、细分2、部门,四个层级,求subtotal: groupby1= gongshi_jichu['分摊工时'].groupby([gongshi_jichu['大类'],gongshi_jichu['细分1'],gongshi_jichu['细分2'],gongshi_jichu['填报dept2'],gongshi_jichu['月']]).agg(np.sum).unstack().fillna(0) groupby2 = groupby1.groupby(level=[0,1]).sum() groupby2.index = pd.MultiIndex.from_arrays([groupby2.index.get_level_values(0),groupby2.index.get_level_values(1) + ' ',len(groupby2) * ['']]) groupby3 = groupby1.grou
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