decompressBeadData: Decompress a file in the beadarray binary format
In BeadDataPackR: Compression of Illumina BeadArray data

Description Usage Arguments Value Author(s) Examples

View source: R/decompressBeadData.R

Decompressed a file create by BeadDataPackR. The original files that were compressed will be restored as accurately as possible, depending upon the degree of precision specified during the compression.

1 2	decompressBeadData(input, inputPath = ".", outputMask = NULL, outputPath = ".", outputNonDecoded = FALSE, roundValues = TRUE, progressBar = TRUE)

`input`	The name of the .bab file(s) to be read. Can be a vector of file names, such as generated by `list.files()`.
`inputPath`	Path where the compress file is located. The default is to use the current working directory.
`outputMask`	Text specify the names of the output files. The output files will have ".txt", "_Grn.locs" and (if approriate "_Red.locs") appended to this mask. If left NULL the original names of the section will be used.
`outputPath`	Path to where the uncompressed version of the files should be written to. The default is to use the current working directory.
`outputNonDecoded`	If TRUE the undecoded beads will be included in the output .txt file. They will have ProbeID 0 and intensity 0, but the bead centre coordinates will be included.
`roundValues`	The original Illumina text files give the bead centre coordinates to 7 significant figures. When this argument is TRUE decompressed files are also truncated in this manner, whilst FALSE writes them to the full precision they are stored in the compressed file.
`progressBar`	By default the function uses a `txtProgressBar` to indicate progress through the compression. Setting this argument to FALSE supresses the drawing of this progress bar.

Called primarily for its side effect, in which two (or three) files are written to the disk. These files should be representative of the original files that were compressed. The function returns, invisibly, the number of lines written in the .txt file.

Mike L. Smith

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    dataPath <- system.file("extdata", package = "BeadDataPackR")
    decompressBeadData(input = "example.bab", inputPath = dataPath, outputPath = tempdir())