5155 method=method, 5156 copy=copy, 5157 level=level, 5158 fill_value=fill_value, 5159 limit=limit, 5160 tolerance=tolerance, 5161 ) File ~/work/pandas/pandas/pandas/core/generic.py:5610, in NDFrame.reindex(self, labels, index, columns, axis, method, copy, level, fill_value, limit...
In [29]: df.columns.levels # original MultiIndex Out[29]: FrozenList([['bar', 'baz', 'foo', 'qux'], ['one', 'two']]) In [30]: df[["foo","qux"]].columns.levels # sliced Out[30]: FrozenList([['bar', 'baz', 'foo', 'qux'], ['one', 'two']]) 这样做是为了避免...
Can I drop columns based on their index instead of names? You can drop columns based on their index in Pandas. To do this, you need to use theilocindexer along with thedropmethod. For example,df.columns[column_indices_to_drop]retrieves the column names based on their indices, and then...
axis: It specifies to drop columns or rows. set aaxisto1or ‘columns’ to drop columns. By default, it drops the rows from DataFrame. columns: It is an alternative toaxis='columns'. It takes a single column label or list of column labels as input. level: It is used in the case of...
By using pandas.DataFrame.T.drop_duplicates().T you can drop/remove/delete duplicate columns with the same name or a different name. This method removes
（df和series一起也行）。注意是按index合并的（也可以选择ignore）。新手喜欢嵌套merge，然后各种drop/...
(df.drop(['公司名称'], axis=1)) # 删除列数据 # print(df.drop(columns=['公司名称'])) # 删除列数据 # print(df.drop(labels='公司名称', axis=1)) # 删除列数据,labels 标签,需要用axis来表示是行还是列 # df.drop(index=2, inplace=True) # df.drop([2], axis=0, inplace=True) ...
方法四:有些带有ignore_index参数的操作,可以起到重设index的作用。例如:dropna(),drop_duplicates(),sort_index(),sort_value()等 2、重设Columns_name列标签: 方法一:df.columns=自定义的列名值np数组(列表) 方法二:df.rename(columns=mapper,inplace=True)等价于: ...
对于数据中的重复行,我们可以使用drop_duplicates()函数进行删除。 python 复制代码 # 删除重复行,保留第一个出现的行 df_unique = df.drop_duplicates() 数据类型转换 Pandas允许我们方便地将一列的数据类型转换为另一种数据类型。例如,我们可以使用astype()函数将一列的数据类型从整数转换为浮点数,或者从字符串转...
Theindexparameter is used when we have to drop a row from the dataframe. Theindexparameter takes an index or a list of indices that have to be deleted as its input argument. Thecolumnsparameter is used when we need to drop a column from the dataframe. The columns parameter takes a column...