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...a list of the data files. e.g. namelist <- readLines("list_of_names",n=-1) for (i in 1:100) { k <- function(namelist[i]) write(k,file="outputfile",append=TRUE) } Next, I tried automating the R commands by making a loop. Within the loop I called the R-script. Within ecery single loop R called the R-script and performs the commands therein (or is supposed to perform it) on the actual data file. After a loop finished, I tried appending the output to an output file. The problem is that R gives an error message saying that it cannot open the input files. What can...

Many of you probably know the ''depot'' app from the ''Agile Rails development'' book. I have constructed the ''products'' model, the Store-controller, and the ''Cart'' and ''Line Item'' classes. I have told Application-controller about :cart and :line_item: model :cart model :line_item Here''s part of