为什么Dataframe.groupby.sum（）不显示汇总值？

Question

import pandas as pd
import numpy as np

data_agency = pd.read_excel("Sample.xlsm")

data_agency.groupby(['Person']).sum()

但是我得到的东西类似于仅一行的数据：

type(data_agency['Person'].iloc[0])返回str类型

type(data_agency['Reg Hrs.'].iloc[0])返回float64类型

Answer 1

您可以选择那些列，然后应用聚合

data_agency.groupby(['Person'])[["LunchBreak", "HoursWorked", "Regofhours","RegNSDHrs","RegOTNSDHRS"]].sum()

Answer 2

data_agency.groupby('Person').agg('sum')