【发布时间】：2021-03-03 19:09:04
【问题描述】：
我正在尝试通过索引复制/复制数据框中的几行，但我没有这样做。
鉴于此 DataFrame：
我的代码：
def duplicateDealers(self, data):
pd.options.display.width = 0
counter = 0
for index, row in data.iterrows():
brandColumn = 'Brand' + str(counter)
# print(index, row[brandColumn])
if str(row[brandColumn]) == 'Cadillac':
newData = pd.DataFrame(np.repeat(data.loc[int(index)], 1))
newData['Repeated'] = 'Yes'
print(newData.columns)
print(type(pd.DataFrame(np.repeat(data.loc[int(index)], 1))))
print(newData)
如果我使用以下代码：
newData = pd.DataFrame(np.repeat(data.loc[int(index)], 1, axis=0))
我收到此错误：
ValueError: 'axis' 参数在 pandas 的 repeat() 实现中不受支持
我想用这段代码实现什么？
我遍历行和列以识别列“Brand0”中的单词“Cadillac”，如果条件为 True，那么我想通过其索引复制整行并保持行的原始格式，然后我将按照我的意愿操作新的行数据。
输出如下（列名“4108”为随机索引，DataFrame记录量巨大，超过5k）：
我想要的输出是：
我做错了什么？
问候和感谢。
编辑：
以下是一些示例数据：
Source_ID | SecondaryName | PrimaryName | Address | City | State | Full_Postal_Code | Postal_Code | Country | Telephone | Brand0
123456 | JACK SCHMITT CADILLAC, INC. | JACK SCHMITT CADILLAC, INC. | 915 W HWY 50 | O FALLON | IL | 62269 | 62269 | USA | 6186321001 | Cadillac
987654 | JAMES E. BLACK CADILLAC | JAMES E. BLACK CADILLAC | 3929 ADMIRAL PEARY HWY | EBENSBURG | PA | 15931 | 15931 | USA | 8144729553 | Cadillac
753951 | COLE-VALLEY MOTOR COMPANY | COLE-VALLEY MOTOR COMPANY | 4111 ELM ROAD NE | WARREN | OH | 44483 | 44483 | USA | 3303721668 | Cadillac
159357 | MCDONALD GMC-CADILLAC, INC. | MCDONALD GMC-CADILLAC, INC. | 5155 STATE ST | SAGINAW | MI | 48603 | 48603 | USA | 9897905154 | Cadillac
456987 | DAVID BRUCE AUTO CENTER, INC. | DAVID BRUCE AUTO CENTER, INC. | 555 LATHAM DR | BOURBONNAIS | IL | 60914 | 60914 | USA | 8159337709 | Cadillac
321456 | JACK WOLF CADILLAC-GMC TRUCK, INC. | JACK WOLF CADILLAC-GMC TRUCK, INC. | 1855 N STATE ST | BELVIDERE | IL | 61008 | 61008 | USA | 8155443403 | Cadillac
编辑 2：
这里有更多关于我尝试实现的目标的详细信息：
每一行可能有几个 BrandX 列，根据其内容，我将复制该行并将品牌名称和其他内容添加到 Source_ID，这样我就可以根据经销商品牌获得适量的记录。
数据帧：
Source_ID | SecondaryName | PrimaryName | Address | City | State | Full_Postal_Code | Postal_Code | Country | Telephone | Brand0 | Brand1 | Brand2
123456 | JACK SCHMITT CADILLAC, INC. | JACK SCHMITT CADILLAC, INC. | 915 W HWY 50 | O FALLON | IL | 62269 | 62269 | USA | 6186321001 | Cadillac | GMC | Buick
987654 | JAMES E. BLACK CADILLAC | JAMES E. BLACK CADILLAC | 3929 ADMIRAL PEARY HWY | EBENSBURG | PA | 15931 | 15931 | USA | 8144729553 | Cadillac | NaN | GMC
753951 | COLE-VALLEY MOTOR COMPANY | COLE-VALLEY MOTOR COMPANY | 4111 ELM ROAD NE | WARREN | OH | 44483 | 44483 | USA | 3303721668 | Cadillac | Buick | NaN
159357 | MCDONALD GMC-CADILLAC, INC. | MCDONALD GMC-CADILLAC, INC. | 5155 STATE ST | SAGINAW | MI | 48603 | 48603 | USA | 9897905154 | Cadillac | Buick | NaN
456987 | DAVID BRUCE AUTO CENTER, INC. | DAVID BRUCE AUTO CENTER, INC. | 555 LATHAM DR | BOURBONNAIS | IL | 60914 | 60914 | USA | 8159337709 | Cadillac | Chevrolet | GMC
321456 | JACK WOLF CADILLAC-GMC TRUCK, INC. | JACK WOLF CADILLAC-GMC TRUCK, INC. | 1855 N STATE ST | BELVIDERE | IL | 61008 | 61008 | USA | 8155443403 | Cadillac | NaN | NaN
预期输出：
Source_ID | SecondaryName | PrimaryName | Address | City | State | Full_Postal_Code | Postal_Code | Country | Telephone | Brand0 | Brand1 | Brand2
123456_Cadillac | JACK SCHMITT CADILLAC, INC. | JACK SCHMITT CADILLAC, INC. | 915 W HWY 50 | O FALLON | IL | 62269 | 62269 | USA | 6186321001 | Cadillac | GMC | Buick
123456_GMC | JACK SCHMITT CADILLAC, INC. | JACK SCHMITT CADILLAC, INC. | 915 W HWY 50 | O FALLON | IL | 62269 | 62269 | USA | 6186321001 | Cadillac | GMC | Buick
123456_Buick | JACK SCHMITT CADILLAC, INC. | JACK SCHMITT CADILLAC, INC. | 915 W HWY 50 | O FALLON | IL | 62269 | 62269 | USA | 6186321001 | Cadillac | GMC | Buick
987654_Cadillac | JAMES E. BLACK CADILLAC | JAMES E. BLACK CADILLAC | 3929 ADMIRAL PEARY HWY | EBENSBURG | PA | 15931 | 15931 | USA | 8144729553 | Cadillac | NaN | GMC
987654_GMC | JAMES E. BLACK CADILLAC | JAMES E. BLACK CADILLAC | 3929 ADMIRAL PEARY HWY | EBENSBURG | PA | 15931 | 15931 | USA | 8144729553 | Cadillac | NaN | GMC
753951_Cadillac | COLE-VALLEY MOTOR COMPANY | COLE-VALLEY MOTOR COMPANY | 4111 ELM ROAD NE | WARREN | OH | 44483 | 44483 | USA | 3303721668 | Cadillac | Buick | NaN
753951_GMC | COLE-VALLEY MOTOR COMPANY | COLE-VALLEY MOTOR COMPANY | 4111 ELM ROAD NE | WARREN | OH | 44483 | 44483 | USA | 3303721668 | Cadillac | Buick | NaN
159357_Cadillac | MCDONALD GMC-CADILLAC, INC. | MCDONALD GMC-CADILLAC, INC. | 5155 STATE ST | SAGINAW | MI | 48603 | 48603 | USA | 9897905154 | Cadillac | Buick | NaN
159357_Buick | MCDONALD GMC-CADILLAC, INC. | MCDONALD GMC-CADILLAC, INC. | 5155 STATE ST | SAGINAW | MI | 48603 | 48603 | USA | 9897905154 | Cadillac | Buick | NaN
456987_Cadillac | DAVID BRUCE AUTO CENTER, INC. | DAVID BRUCE AUTO CENTER, INC. | 555 LATHAM DR | BOURBONNAIS | IL | 60914 | 60914 | USA | 8159337709 | Cadillac | Chevrolet | GMC
456987_Chevrolet | DAVID BRUCE AUTO CENTER, INC. | DAVID BRUCE AUTO CENTER, INC. | 555 LATHAM DR | BOURBONNAIS | IL | 60914 | 60914 | USA | 8159337709 | Cadillac | Chevrolet | GMC
456987_GMC | DAVID BRUCE AUTO CENTER, INC. | DAVID BRUCE AUTO CENTER, INC. | 555 LATHAM DR | BOURBONNAIS | IL | 60914 | 60914 | USA | 8159337709 | Cadillac | Chevrolet | GMC
321456_Cadillac | JACK WOLF CADILLAC-GMC TRUCK, INC. | JACK WOLF CADILLAC-GMC TRUCK, INC. | 1855 N STATE ST | BELVIDERE | IL | 61008 | 61008 | USA | 8155443403 | Cadillac | NaN | NaN
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