[英]openxlsx write R dataframe to XLSX with cell reference from worksheet to another
I am trying to write formulas from an R dataframe to XLSX file. 我正在尝试将公式从R数据帧写入XLSX文件。 I want to reference data from one worksheet in another using cell references. 我想使用单元格引用来引用另一个工作表中的数据。 One worksheet is suppposed to be a "database" and then the other sheet is supposed to have the "formula" which references data from the "database" sheet. 假设一个工作表是一个“数据库”,然后另一个工作表应该具有“公式”,该“公式”引用“数据库”表中的数据。
The R code: R代码:
require(openxlsx)
# create workbook ---------------------------------------------------------
wb <- createWorkbook()
# add worksheets ----------------------------------------------------------
addWorksheet(wb, "database")
addWorksheet(wb, "database space")
addWorksheet(wb, "reference")
# make database -----------------------------------------------------------
df1 <- data.frame(
a = 1,
b = 2,
formula_1 = "A2 + B2"
)
## change class to formula
class(df1$formula_1) <- c(class(df1$formula_1), "formula")
# prepare formula ---------------------------------------------------------
df2 <- data.frame(
formula_2 = "$database.A2",
formula_3 = "$'database space'.B2"
)
# change class to formula
class(df2$formula_2) <- c(class(df2$formula_2), "formula")
class(df2$formula_3) <- c(class(df2$formula_3), "formula")
# write to XLSX file ------------------------------------------------------
writeData(wb, sheet = "database", x = df1)
writeData(wb, sheet = "database space", x = df1)
writeData(wb, sheet = "reference", x = df2)
# open XLSX file ----------------------------------------------------------
openXL(wb)
The usual way of adding a formula works. 添加公式的通常方法是可行的。 In the openend XLSX file this is demonstrated in cell C3 of worksheet database
and database space
. 在openend XLSX文件中,这在工作表database
单元格C3和database space
得到了证明。 But, when opening worksheet formula
, my issue presents itself (see screenshot 1). 但是,当打开工作表formula
,我的问题出现了(请参见屏幕截图1)。 Cells A2 and B2 both show #NAME?
单元格A2和B2都显示#NAME?
and not the value of the other worksheets. 而不是其他工作表的值。
However, when I add the cell reference manually, it works (see screenshot 2). 但是,当我手动添加单元格引用时,它可以工作(请参见屏幕截图2)。
openxlsx
version openxlsx
版本
> packageVersion("openxlsx")
[1] ‘4.0.17’
How can I solve this problem? 我怎么解决这个问题?
The problem here are the names that are passed to df2
. 这里的问题是传递给df2
的名称。 The solution to the problem is to remove the $
and replace the .
解决该问题的方法是删除$
并替换$
.
with a !
用!
. 。
Replacing df2
in the code above with the following works: 用以下工作替换上面代码中的df2
:
df2 <- data.frame(
formula_2 = "database!A2",
formula_3 = "'database space'!B2"
)
The character strings are now evaluated as formulas and correctly reference cells from other sheets. 现在将字符串作为公式求值,并正确引用其他工作表中的单元格。 I found the solution by working through the XLConnect
R package, where an example in the help file for setCellFormula-methods
includes a formula as a reference to a separate sheet. 我通过研究XLConnect
R包找到了解决方案,其中setCellFormula-methods
的帮助文件中的示例包括一个公式作为对单独工作表的引用。
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