将带有公式的Pandas DataFrame保存到xlsx文件 [英] Save Pandas DataFrames with formulas to xlsx files

问题描述

在Pandas DataFrame中，我有一些带有值的单元格"，而有些则需要包含excel公式.我已经读到我可以使用公式

In a Pandas DataFrame i have some "cells" with values and some that need to contain excel formulas. I have read that i can get formulas with

link = 'HYPERLINK("#Groups!A' + str(someInt) + '"; "LINKTEXT")'
xlwt.Formula(link)

并将它们存储在数据框中.

and store them in the dataframe.

当我尝试将数据框另存为xlsx文件时

When i try to save my dataframe as an xlsx file with

writer = pd.ExcelWriter("pandas" + str(fileCounter) + ".xlsx", engine = "xlsxwriter")
df.to_excel(writer, sheet_name = "Paths", index = False)
# insert more sheets here
writer.save()

我得到了错误:

TypeError: Unsupported type <class 'xlwt.ExcelFormula.Formula'> in write()

所以我试图将公式作为字符串写到数据框中，但是Excel希望还原文件内容，然后用0填充所有公式单元格.

So i tried to write my formula as a string to my dataframe but Excel wants to restore the file content and then fills all formula cells with 0's.

我设法使它可以与常规字符串一起使用，但仍然对xlwt公式的解决方案感兴趣.

I managed to get it work with regular strings but nevertheless would be interested in a solution for xlwt formulas.

所以我的问题是:如何将带有公式的数据框保存到xlsx文件?

So my question is: How do i save dataframes with formulas to xlsx files?

推荐答案

在使用table.to_excel(writer, sheet_name=...)编写df之后，如本例所示，我使用write_formula()(已编辑以添加完整循环).要在数据框中写入所有公式，请阅读数据框中的每个公式.

After writing the df using table.to_excel(writer, sheet_name=...), I use write_formula() as in this example (edited to add the full loop). To write all the formulas in your dataframe, read each formula in your dataframe.

# replace the right side below with reading the formula from your dataframe # e.g., formula_to_write = df.loc(...)

# replace the right side below with reading the formula from your dataframe # e.g., formula_to_write = df.loc(...)

rows = table.shape[0] for row_num in range(1 + startrow, rows + startrow + 1): formula_to_write = '=I{} * (1 - AM{})'.format(row_num+1, row_num+1) worksheet.write_formula(row_num, col, formula_to_write)

rows = table.shape[0] for row_num in range(1 + startrow, rows + startrow + 1): formula_to_write = '=I{} * (1 - AM{})'.format(row_num+1, row_num+1) worksheet.write_formula(row_num, col, formula_to_write)

稍后在代码中(我似乎记得其中之一可能是多余的，但我没有查过): writer.save() workbook.close()

Later in the code (I seem to recall one of these might be redundant, but I haven't looked it up): writer.save() workbook.close()

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