reading multiple files

Dear All,


How do I read in multiple data frames or matrices in a
loop, e.g.

for (i in 1:n) {
   channel <- odbcConnectExcel("filenames")
   file[i] <- as.data.frame(sqlFetch(channel,
"sheet"))
}

I would like file[i] to be the name of the data.frame
(i.e. file[1], file[2], file[3],...etc) rather than a
vector.

The terminology you are using re. R objects seems to be rather confused.

Quite probably you want a list of data frames such as using the 
filenames as names for the list elements along the follwoing lines:

library(RODBC)
dataframes <- vector(mode="list", length=length(filenames))
names(dataframes) <- filenames
for(i in filenames){
   channel <- odbcConnectExcel(i)
   dataframes[[i]] <- sqlFetch(channel, "sheet")
   close(channel)
}


Uwe Ligges

Thanks in advance for any help.

Dave

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