Dear Members,
I found a strange behaviour with the RDCOMClient package, that I cannot
explain.
If I paste into the R console the content of the function enclosed below all
is fine,
however if I try to run the function with GetCellValue() excel gets into
error while
loading the add-in.
Does anyone already got this kind error or can tell me if I miss something?
Any help is appreciated.
Thanks, Paolo
#---------------- FUNCTION -----------------------
GetCellValue<-function(){
#Settings
filePath<- 'C:\\'
fileName<- 'myFile.xls'
sheetName<- 'Sheet1'
cellName<- 'A1'
my.addin<- 'C:\\Program Files\\myaddin.xla'
#Start Excel
xls <- COMCreate("Excel.Application")
books <- xls[["Workbooks"]]
xls[["Visible"]]<-T
#Load Addin
books$Open(my.addin,updatelinks=T)
#Load Workbook
tryCatch({
books$Open(paste(filePath,'\\',fileName,sep=''),updatelinks=T)
WB <- books$item(fileName)
SH <- WB[["worksheets"]]$item(sheetName)
out<- SH$Range(cellName)[['Value']]
WB$Close(SaveChanges=FALSE)
}
,error = function(e) {}, finally = {rm(WB,SH)})
system('taskkill /f /im EXCEL.EXE')
return(out)
}
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