readData: Step 1: Read dataset files
In NeilPearson-Lilly/MethyLiution: MethyLiution: A QC Pipeline For Methylation Data

This probably isn't something you want to run directly. Just use the runPipeline() function.

1 2	readData(datadir, metafile, logfile, mset_file, array = "450K", threads = 1, FDB)

`datadir`	Path to directory containing IDAT files
`metafile`	Path to file containing experimental metadata
`logfile`	Path to log file (auto-filled by runPipeline() function)
`mset_file`	Path to file in which dataset object is stored between steps (auto-filled by runPipeline() function)
`array`	Microarray probeset used: valid options are "450K" and "EPIC" (default "450K")
`threads`	Number of threads to run certain tasks in parallel
`FDB`	Methylation annotation set (auto-filled by runPipeline() function)