如何将合并单元格中的数据拆分为Python数据帧同一行中的其他单元格？
我有一个数据帧的示例，如下所示：如何将合并单元格中的数据拆分为Python数据帧同一行中的其他单元格？,python,pandas,dataframe,data-cleaning,Python,Pandas,Dataframe,Data Cleaning,我有一个数据帧的示例，如下所示： +---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+ | | Date
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| | Date | Professional | Description |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 0 | 2019-12-19 00:00:00 | Katie Cool | Travel to Space ... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 1 | 2019-12-20 00:00:00 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 2 | 2019-12-27 00:00:00 | Jenn Blossoms | Review lots of stuff/o... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 3 | 2019-12-27 00:00:00 | Jenn Blossoms | Draft email to world leader... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 4 | 2019-12-30 00:00:00 | Jenn Blossoms | Review this thing. |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 5 | 12-30-2019 Jenn Blossoms Telephone Call to A. Bell return her multiple | NaN | NaN |
| | voicemails. | | |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
+---+---------------------+---------------+-------------------------------------------------------------+
| | Date | Professional | Description |
+---+---------------------+---------------+-------------------------------------------------------------+
| 0 | 2019-12-19 00:00:00 | Katie Cool | Travel to Space ... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 1 | 2019-12-20 00:00:00 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 2 | 2019-12-27 00:00:00 | Jenn Blossoms | Review lots of stuff/o... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 3 | 2019-12-27 00:00:00 | Jenn Blossoms | Draft email to world leader... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 4 | 2019-12-30 00:00:00 | Jenn Blossoms | Review this thing. |
+---+---------------------+---------------+-------------------------------------------------------------+
| 5 | 12-30-2019 | Jenn Blossoms | Telephone Call to A. Bell return her multiple |
| | | | voicemails. |
+---+---------------------+---------------+-------------------------------------------------------------+
+---+------------+---------------+--------------------------------------------+
| | Date | Professional | Description |
+---+------------+---------------+--------------------------------------------+
| 0 | 12/19/2019 | Katie Cool | Travel to space ... |
+---+------------+---------------+--------------------------------------------+
| 1 | 12/20/2019 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+------------+---------------+--------------------------------------------+
| 2 | 12/27/2019 | Jenn Blossoms | Review lots of stuff/o… |
+---+------------+---------------+--------------------------------------------+
| 3 | 12/27/2019 | Jenn Blossoms | Draft email to world leader... |
+---+------------+---------------+--------------------------------------------+
| 4 | 12/30/2019 | Jenn Blossoms | Review this thing. |
+---+------------+---------------+--------------------------------------------+
| 5 | NaN | NaN | NaN |
+---+------------+---------------+--------------------------------------------+
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| | Date | Professional | Description |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 0 | 2019-12-19 00:00:00 | Katie Cool | Travel to Space ... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 1 | 2019-12-20 00:00:00 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 2 | 2019-12-27 00:00:00 | Jenn Blossoms | Review lots of stuff/o... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 3 | 2019-12-27 00:00:00 | Jenn Blossoms | Draft email to world leader... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 4 | 2019-12-30 00:00:00 | Jenn Blossoms | Review this thing. |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 5 | 12-30-2019 Jenn Blossoms Telephone Call to A. Bell return her multiple | NaN | NaN |
| | voicemails. | | |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
+---+---------------------+---------------+-------------------------------------------------------------+
| | Date | Professional | Description |
+---+---------------------+---------------+-------------------------------------------------------------+
| 0 | 2019-12-19 00:00:00 | Katie Cool | Travel to Space ... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 1 | 2019-12-20 00:00:00 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 2 | 2019-12-27 00:00:00 | Jenn Blossoms | Review lots of stuff/o... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 3 | 2019-12-27 00:00:00 | Jenn Blossoms | Draft email to world leader... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 4 | 2019-12-30 00:00:00 | Jenn Blossoms | Review this thing. |
+---+---------------------+---------------+-------------------------------------------------------------+
| 5 | 12-30-2019 | Jenn Blossoms | Telephone Call to A. Bell return her multiple |
| | | | voicemails. |
+---+---------------------+---------------+-------------------------------------------------------------+
+---+------------+---------------+--------------------------------------------+
| | Date | Professional | Description |
+---+------------+---------------+--------------------------------------------+
| 0 | 12/19/2019 | Katie Cool | Travel to space ... |
+---+------------+---------------+--------------------------------------------+
| 1 | 12/20/2019 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+------------+---------------+--------------------------------------------+
| 2 | 12/27/2019 | Jenn Blossoms | Review lots of stuff/o… |
+---+------------+---------------+--------------------------------------------+
| 3 | 12/27/2019 | Jenn Blossoms | Draft email to world leader... |
+---+------------+---------------+--------------------------------------------+
| 4 | 12/30/2019 | Jenn Blossoms | Review this thing. |
+---+------------+---------------+--------------------------------------------+
| 5 | NaN | NaN | NaN |
+---+------------+---------------+--------------------------------------------+
date = dftopdata['Date'].str.extract('(\d{2}-\d{2}-\d{4})(\s\w+\s\w+)\s(\w+.*)')[0]
name = dftopdata['Date'].str.extract('(\d{2}-\d{2}-\d{4})(\s\w+\s\w+)\s(\w+.*)')[1]
description = dftopdata['Date'].str.extract('(\d{2}-\d{2}-\d{4})(\s\w+\s\w+)\s(\w+.*)')[2]
dftopdata.loc[pd.to_datetime(dftopdata['Date'],errors='coerce').isnull(),'Professional'] = name
dftopdata.loc[pd.to_datetime(dftopdata['Date'],errors='coerce').isnull(),'Description'] = description
dftopdata.loc[pd.to_datetime(dftopdata['Date'],errors='coerce').isnull(),'Date'] = date
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| | Date | Professional | Description |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 0 | 2019-12-19 00:00:00 | Katie Cool | Travel to Space ... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 1 | 2019-12-20 00:00:00 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 2 | 2019-12-27 00:00:00 | Jenn Blossoms | Review lots of stuff/o... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 3 | 2019-12-27 00:00:00 | Jenn Blossoms | Draft email to world leader... |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 4 | 2019-12-30 00:00:00 | Jenn Blossoms | Review this thing. |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
| 5 | 12-30-2019 Jenn Blossoms Telephone Call to A. Bell return her multiple | NaN | NaN |
| | voicemails. | | |
+---+--------------------------------------------------------------------------------------+---------------+--------------------------------------------+
+---+---------------------+---------------+-------------------------------------------------------------+
| | Date | Professional | Description |
+---+---------------------+---------------+-------------------------------------------------------------+
| 0 | 2019-12-19 00:00:00 | Katie Cool | Travel to Space ... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 1 | 2019-12-20 00:00:00 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 2 | 2019-12-27 00:00:00 | Jenn Blossoms | Review lots of stuff/o... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 3 | 2019-12-27 00:00:00 | Jenn Blossoms | Draft email to world leader... |
+---+---------------------+---------------+-------------------------------------------------------------+
| 4 | 2019-12-30 00:00:00 | Jenn Blossoms | Review this thing. |
+---+---------------------+---------------+-------------------------------------------------------------+
| 5 | 12-30-2019 | Jenn Blossoms | Telephone Call to A. Bell return her multiple |
| | | | voicemails. |
+---+---------------------+---------------+-------------------------------------------------------------+
+---+------------+---------------+--------------------------------------------+
| | Date | Professional | Description |
+---+------------+---------------+--------------------------------------------+
| 0 | 12/19/2019 | Katie Cool | Travel to space ... |
+---+------------+---------------+--------------------------------------------+
| 1 | 12/20/2019 | Jenn Blossoms | Review stuff; prepare cancellations of ... |
+---+------------+---------------+--------------------------------------------+
| 2 | 12/27/2019 | Jenn Blossoms | Review lots of stuff/o… |
+---+------------+---------------+--------------------------------------------+
| 3 | 12/27/2019 | Jenn Blossoms | Draft email to world leader... |
+---+------------+---------------+--------------------------------------------+
| 4 | 12/30/2019 | Jenn Blossoms | Review this thing. |
+---+------------+---------------+--------------------------------------------+
| 5 | NaN | NaN | NaN |
+---+------------+---------------+--------------------------------------------+
您可以使用
str.split单词列表中分割专业部分和描述部分，那么您可以使用它。例如，如果单词列表的前两个单词构成了专业人员的姓名，那么您可以执行以下操作-
df['Professional'] = df.apply(lambda x: ' '.join(x['list_of_words'][:2]), axis=1)
df['Description'] = df.apply(lambda x: ' '.join(x['list_of_words'][2:]), axis=1)
谢谢我喜欢这个想法，但当我运行你的代码时，我实际上遇到了这个错误：keyrerror:“单词列表”我猜我需要代码来生成合并数据的行，使代码将数据放在正确的行中？我想这是因为我错过了apply函数的axis=1
参数。我已经编辑了上面的答案，现在我在这一行得到了一个“TypeError:“float”对象不可下标”：df['Professional']=df.apply（lambda x:'.join（x['list\u of_words'][:2]），axis=1）