[英]How Do I Edit .csv files in Python using pandas (appending rows & deleting rows)
I'm working with a csv file in python and trying to figure out...我正在使用 python 中的 csv 文件并试图找出...
Any information would be helpful!任何信息都有帮助! Thank you谢谢
Try:尝试:
cols = your_columns #type list
new_row_as_df = pd.DataFrame([value_col1, value_col2, ..., val_col9], columns=your_columns)
new_row_as_list = [value_col1, value_col2, ..., val_col9]
# Add a new row to the top as df:
df = pd.concat([new_row_as_df, df]).reset_index(drop=True)
# Add a new row to the bottom as list:
df.loc[len(df.index)] = new_row_as_list
# Add a new row to the bottom as df:
df = pd.concat([df, new_row_as_df]).reset_index(drop=True)
# Delete a row at a specific index (int):
df.drop(labels=your_index, axis=0, inplace=True)
Easy way to drop specific rows:删除特定行的简单方法:
# delete a single row by index value 0
data = data.drop(labels=0, axis=0)
# delete a few specified rows at index values 0, 15, 20.
# Note that the index values do not always align to row numbers.
data = data.drop(labels=[1,15,20], axis=0)
# delete a range of rows - index values 10-20
data = data.drop(labels=range(40, 45), axis=0)
And @Sergey just answered on how to add rows to bottom or top. @Sergey 刚刚回答了如何将行添加到底部或顶部。
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