R version 4.5.0 RC (2025-04-04 r88112 ucrt) -- "How About a Twenty-Six"
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> library("aroma.apd")
Loading required package: affxparser
aroma.apd v0.7.1 successfully loaded. See ?aroma.apd for help.
> library("R.utils")  ## Arguments
Loading required package: R.oo
Loading required package: R.methodsS3
R.methodsS3 v1.8.2 (2022-06-13 22:00:14 UTC) successfully loaded. See ?R.methodsS3 for help.
R.oo v1.27.0 (2024-11-01 18:00:02 UTC) successfully loaded. See ?R.oo for help.

Attaching package: 'R.oo'

The following object is masked from 'package:R.methodsS3':

    throw

The following objects are masked from 'package:methods':

    getClasses, getMethods

The following objects are masked from 'package:base':

    attach, detach, load, save

R.utils v2.13.0 (2025-02-24 21:20:02 UTC) successfully loaded. See ?R.utils for help.

Attaching package: 'R.utils'

The following object is masked from 'package:affxparser':

    findFiles

The following object is masked from 'package:utils':

    timestamp

The following objects are masked from 'package:base':

    cat, commandArgs, getOption, isOpen, nullfile, parse, use, warnings

> 
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # 1. Scan for existing CEL files
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # a) Scan for CEL files
> files <- list.files(pattern="[.](cel|CEL)$")
> files <- files[!file.info(files)$isdir]
> if (length(files) > 0 && require("affxparser")) {
+   cat("Create an optimal read map for CEL file:", files[1], "\n")
+   cdffile <- findCdf(readCelHeader(files[1])$chiptype)
+   res <- cdfToApdMap(cdffile)
+ 
+   cat("Converting CEL file to APD file:", files[1], "\n")
+   apdfile <- celToApd(files[1])
+   cat("Created APD file:", apdfile, "\n")
+   file.remove(apdfile)
+ 
+   cat("Converting CEL file to APD file with an optimized read map:", files[1], "\n")
+   apdfile <- celToApd(files[1], mapType=res$mapType)
+   cat("Created APD file:", apdfile, "\n")
+ 
+   writeMap <- invertMap(res$readMap)
+   for (file in files[-1]) {
+     cat("Converting CEL file to APD file with an optimized read map:", file, "\n")
+     apdfile <- celToApd(file, mapType=res$mapType, writeMap=writeMap)
+     cat("Created APD file:", apdfile, "\n")
+   }
+ } # if (length(files) > 0)
> 
> proc.time()
   user  system elapsed 
   0.21    0.07    0.28