将多个 data.frame 导出到多个 Excel 工作表的简单方法 [英] Easy way to export multiple data.frame to multiple Excel worksheets

问题描述

我惊讶地发现没有简单的方法可以将多个data.frame导出到一个Excel文件的多个工作表中?我尝试了 xlsx 包，似乎它只能写入一张纸(覆盖旧纸)；我也试过 WriteXLS 包，但它一直给我错误...

I am surprised to find that there is no easy way to export multiple data.frame to multiple worksheets of an Excel file? I tried xlsx package, seems it can only write to one sheet (override old sheet); I also tried WriteXLS package, but it gives me error all the time...

我的代码结构是这样的:按照设计，对于每次迭代，输出数据框 (tempTable) 和 sheetName (sn) 都会更新并导出到一个选项卡中.

My code structure is like this: by design, for each iteration, the output dataframe (tempTable) and the sheetName (sn) got updated and exported into one tab.

for (i in 2 : ncol(code)){ 
        ...
        tempTable <- ...
        sn <- ...
        WriteXLS("tempTable", ExcelFileName = "C:/R_code/../file.xlsx",
              SheetNames = sn);
}

我可以导出到多个 cvs 文件，但必须有一种在 Excel 中执行此操作的简单方法，对吗?

I can export to several cvs files, but there has to be an easy way to do that in Excel, right?

推荐答案

您可以使用 xlsx 包写入多个工作表.您只需要为每个数据框使用不同的 sheetName 并且您需要添加 append=TRUE:

You can write to multiple sheets with the xlsx package. You just need to use a different sheetName for each data frame and you need to add append=TRUE:

library(xlsx)
write.xlsx(dataframe1, file="filename.xlsx", sheetName="sheet1", row.names=FALSE)
write.xlsx(dataframe2, file="filename.xlsx", sheetName="sheet2", append=TRUE, row.names=FALSE)

另一种可以让您更好地控制格式和数据框放置位置的选项是在 R/xlsx 代码中完成所有操作，然后在最后保存工作簿.例如:

Another option, one that gives you more control over formatting and where the data frame is placed, is to do everything within R/xlsx code and then save the workbook at the end. For example:

wb = createWorkbook()

sheet = createSheet(wb, "Sheet 1")

addDataFrame(dataframe1, sheet=sheet, startColumn=1, row.names=FALSE)
addDataFrame(dataframe2, sheet=sheet, startColumn=10, row.names=FALSE)

sheet = createSheet(wb, "Sheet 2")

addDataFrame(dataframe3, sheet=sheet, startColumn=1, row.names=FALSE)

saveWorkbook(wb, "My_File.xlsx")

如果您觉得它很有用，这里有一些有趣的辅助函数，可以使用 xlsx 更轻松地向电子表格添加格式、元数据和其他功能:http://www.sthda.com/english/wiki/r2excel-read-write-and-format-easily-excel-files-using-r-software

In case you might find it useful, here are some interesting helper functions that make it easier to add formatting, metadata, and other features to spreadsheets using xlsx: http://www.sthda.com/english/wiki/r2excel-read-write-and-format-easily-excel-files-using-r-software

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