EADST

Pandas Dataframe Sum the Filtering Data 数据筛选后求和

# sum the index profit in May
df1 = data_frame[(data_frame['month'] == 5)]['profit'].sum()

# sum the index profit from May to July
df2 = data_frame[(data_frame['month']>=5) & (data_frame['month']<8)]['profit'].sum()