python合并一列单元格pandas
时间: 2023-10-13 15:24:24 浏览: 67
Sure, I can help with that! Here's an example of how to merge a single column of cells in pandas:
Assuming you have a dataframe df with a column 'col_name' that you want to merge:
1. Use the groupby() function to group the rows by a specific column (in this case 'col_name'):
```
grouped = df.groupby('col_name')
```
2. Use the apply() function to apply a custom merge function to each group of rows:
```
merged = grouped['col_name'].apply(your_merge_function)
```
3. Define your_merge_function to merge the values in each group into a single string (or any other format you want):
```
def your_merge_function(group):
return ', '.join(group)
```
4. The resulting 'merged' object will be a pandas Series with the merged values for each group of rows in the 'col_name' column.
Hope that helps! Let me know if you have any other questions.
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