您可以将drop_level=False传递给xs以保留所选的级别。 代码语言:javascript 代码运行次数:0 复制Cloud Studio 代码运行 In [78]: df.xs("one", level="second", axis=1, drop_level=False) Out[78]: first bar baz foo qux second one one one one A 0.895717 -1.206412 1.431256 -1.170299 B 0.410835 ...
该格式不会为 DataFrame 写入Index 或MultiIndex,如果提供了非默认的索引,则会引发错误。您可以使用 .reset_index() 存储索引,或使用 .reset_index(drop=True) 忽略它。 不支持重复的列名和非字符串的列名 不支持对象数据类型列中的实际 Python 对象。在尝试序列化时,这些将引发一个有用的错误消息。 查看完...
- ``first`` : Drop duplicates except for the first occurrence. - ``last`` : Drop duplicates except for the last occurrence. - False : Drop all duplicates. inplace : boolean, default False Whether to drop duplicates in place or to return a copy Returns --- deduplicated : DataFrame...
- ``first`` : Drop duplicates except for the first occurrence. - ``last`` : Drop duplicates except for the last occurrence. - False : Drop all duplicates. inplace : boolean, default False Whether to drop duplicates in place or to return a copy 重点参数: subset 最常见的去重操作是真的...
(pd.concat([df1,df2]).drop_duplicates().reset_index(drop=True))17print('intersect的结果')18print(df1.merge(df2).drop_duplicates())19print('伪except的结果')20print(df1[-df1.isin(df2)].dropna(how='all'))21print('except的结果')22print(df1.append(df2).append(df2).drop_duplicates(...
employee: pd.DataFrame, N: int) -> pd.DataFrame: df = employee[["salary"]].drop_duplica...
first : Drop duplicates except for the first occurrence. last : Drop duplicates except for the last occurrence. False : Drop all duplicates. """ 1. 2. 3. 4. 5. 6. 7. 4. 拼接 (1) 拼接列merge() result = pd.merge(left, right, on='name', how='inner') ...
df2 = df1.dropna(how='all') # 数据清洗,为完成需求删去不必要的行 df2 = df2.replace('-', 0) # 把‘-’的替换成0便于后面计算 df2 = df2.fillna(0) # 数据清洗,缺失值用0补足 df2 = df2.reset_index(drop=True) # 重设行索引
Disallow passing non-keyword arguments to DataFrame.drop_duplicates() except for subset Disallow passing non-keyword arguments to DataFrame.sort_index() and Series.sort_index() Disallow passing non-keyword arguments to DataFrame.interpolate() and Series.interpolate() except for method Disallow passing ...
first: Drop duplicates except for the first occurrence. last: Drop duplicates except for the last occurrence. False : Drop all duplicates. inplace: boolean, default False Whether to drop duplicates in place or to return a copy Returns