Pandas: 保存数据框以打开工作簿
Pandas: save dataframe to open Workbook
我打开了一个写入数据的工作簿。如何添加工作表来写入数据框的内容?
import xlsxwriter
import pandas as pd
workbook = xlsxwriter.Workbook('test.xlsx')
sheet1 = workbook.add_worksheet(name='sheet1')
sheet1.write(0, 0, 'test')
df = pd.DataFrame({'a': [1, 2, 3, 4], 'b': ['aa', 'bb', 'cc', 'dd']})
# write df somehow to next sheet. I usually use df.to_excel(filename, engine='xlsxwriter'), but this will create a new file
workbook.close()
正如您在评论中指出的那样,您不能将 XlsxWriter 工作簿对象传递给 pandas to_excel()
.
作为解决方法,您可以创建一个包含空数据框的工作表,然后访问 XlsxWriter 工作簿和下面的工作表对象。然后,您可以通过 pandas 界面添加额外的工作表。
这是一个基于您的代码的小示例:
import pandas as pd
# Create an pandas excel writer based on xlsxwriter.
writer = pd.ExcelWriter('test.xlsx', engine='xlsxwriter')
# Create a worksheet with an empty dataframe so the sheet is empty.
df = pd.DataFrame()
df.to_excel(writer, sheet_name='Sheet1')
# Access the underlying xlsxwriter worksheet and write to it.
workbook = writer.book
worksheet = writer.sheets['Sheet1']
worksheet.write(0, 0, 'test')
# Create another dataframe with data.
df = pd.DataFrame({'a': [1, 2, 3, 4],
'b': ['aa', 'bb', 'cc', 'dd']})
# Write the dataframe to another worksheet.
df.to_excel(writer, sheet_name='Sheet2')
writer.save()
我打开了一个写入数据的工作簿。如何添加工作表来写入数据框的内容?
import xlsxwriter
import pandas as pd
workbook = xlsxwriter.Workbook('test.xlsx')
sheet1 = workbook.add_worksheet(name='sheet1')
sheet1.write(0, 0, 'test')
df = pd.DataFrame({'a': [1, 2, 3, 4], 'b': ['aa', 'bb', 'cc', 'dd']})
# write df somehow to next sheet. I usually use df.to_excel(filename, engine='xlsxwriter'), but this will create a new file
workbook.close()
正如您在评论中指出的那样,您不能将 XlsxWriter 工作簿对象传递给 pandas to_excel()
.
作为解决方法,您可以创建一个包含空数据框的工作表,然后访问 XlsxWriter 工作簿和下面的工作表对象。然后,您可以通过 pandas 界面添加额外的工作表。
这是一个基于您的代码的小示例:
import pandas as pd
# Create an pandas excel writer based on xlsxwriter.
writer = pd.ExcelWriter('test.xlsx', engine='xlsxwriter')
# Create a worksheet with an empty dataframe so the sheet is empty.
df = pd.DataFrame()
df.to_excel(writer, sheet_name='Sheet1')
# Access the underlying xlsxwriter worksheet and write to it.
workbook = writer.book
worksheet = writer.sheets['Sheet1']
worksheet.write(0, 0, 'test')
# Create another dataframe with data.
df = pd.DataFrame({'a': [1, 2, 3, 4],
'b': ['aa', 'bb', 'cc', 'dd']})
# Write the dataframe to another worksheet.
df.to_excel(writer, sheet_name='Sheet2')
writer.save()