R/FileChoice.R

In anapuce: Tools for Microarray Data Analysis

FileChoice <-
  function(pattern = NULL) {
    fic1     <- file.choose()
    datapath <- dirname(fic1)
    setwd(datapath)
    files <- list.files(pattern = pattern)

    cat("\n")
    files.ana <- NULL
    for (i in 1:length(files)) {
      cat("\t[", i, "]\t", files[i], "\n", sep = "")
      repeat {
        answer <- readline("\tValidate (y/n)? ")
        if (answer == "n") {
          stop("You have not validate your files.")
        }
        if (answer == "y")
        {
          files.ana <- c(files.ana, files[i])
          break
        }
      }
    }
    files <- files.ana
    if (length(files) > 1) {
      cat("\n\n*** Change slides order \n\n")


      # Display files names in order
      cat("\n")
      for (i in 1:length(files)) {
        cat("\t[", i, "]\t", files[i], "\n", sep = "")
      }


      repeat {
        ord <-
          readline("\n\tChange order [ ex : 1,3,2,..] or type [enter] if no change : ")



        if (ord == "")
          ord <- "-1"
        else{
          ord <- as.numeric(unlist(strsplit(ord, ",")))
          ord <- ord[!is.na(ord)]
        }
        if (ord[1] == -1) {
          break
        }



        if (length(ord) != length(files))
          cat("Error! a file has been omitted.")
        else{
          if (length(ord) != length(unique(ord))) {
            cat("Error! a file has been set more than once.")
          } else{
            files <- files[ord]
            cat("\n")
            for (i in 1:length(files)) {
              cat("\t[", i, "] ", files[i], "\n", sep = "")
            }
            repeat {
              answer <- readline("\tValidate (y/n)? ")
              if (answer == "n" | answer == "y")
                break
            }
            if (answer == "y") {
              break
            }

          }
        }
      }

    }
    cat("\n")
    invisible(files)
    # (c) 2007 Institut National de la Recherche Agronomique

  }