How to merge csv files from nested folders in R

Question

I have a large collection of csv files that are in different folders and in folders within folders that I need to merge into one file. It would be easy if they were all in o

Answer 1

This solution has the assumption that all *.csv files have the same structure.

(Untested)

fileList <- list.files(
  pattern="*.csv$",
  recursive=TRUE,
  full.name=TRUE,
  )

completeCSV <- data.frame()


for(file in fileList) {
  print(file) # for debug: print current file
  if (nrow(completeCSV) == 0) {
    completeCSV <- read.csv(file)
  } else {
    curDF <- read.csv(file) # could also be read.csv2()
    rbind(completeCSV, curDF)
  }
}

write.csv(completeCSV) # could also be write.csv2()