gpQuality {arrayQuality} | R Documentation

## Diagnostic plots and comparative boxplots for general hybridization

### Description

This component provides qualitative diagnostic plots and quantitative measures for assessing general hybridization quality. All results are displayed in a HTML report. GenePix format only.

### Usage

    gpQuality(fnames = NULL, path = ".", organism = c("Mm", "Hs"),
    compBoxplot = TRUE, reference = NULL, controlMatrix = controlCode,
    controlId = c("ID", "Name"), output = FALSE, resdir = ".", dev= "png",
    val=c("maM", "maA"),DEBUG = FALSE,...)

### Arguments

`fnames` | A "character" string naming the input files.
`path` | A "character" string representing the data directory. By default this is set to the current working directory (".").
`organism` | A "character" string naming the organism genome printed on the array, either "Mm" or "Hs". By default, organism is set to "Mm". It is used to retrieve the corresponding reference tables.
`compBoxplot` | Logical. If set to 'FALSE', only qualitative diagnostic plots will be plotted. gpQuality ouput will be limited to a diagnostic plot by gpr file and a marrayRaw object.
`reference` | A matrix resulting from globalQuality, to be used as reference table to compare slides. If 'NULL', the default table corresponding to organism will be used. See details for more information.
`controlMatrix` | A character matrix of n by 2 columns. The first column contains a few regular expression of spotted probe sequences and the second column contains the corresponding control status. By default, controlMatrix is set to controlCode.
`controlId` | Character string. Name of the column of the gpr file used to define controls.
`output` | Logical. If 'TRUE', normalized M values corresponding to the input GenePix files and quality measures are printed to a file.
`resdir` | A "character" string representing the directory where the results will be saved. By default, this is set to the current working directory (".").
`dev` | A "character" string naming the graphics device. This will take arguments "png", "jpeg" and "ps" only. By default, dev is set to "png".
`val` | A "character" string representing the slotNames to be written in the output file.
`DEBUG` | If 'TRUE', debug statements are printed.
`...` | additional arguments

### Details

gpQuality returns 2 plots for each GenePix files passed as argument. The first one is a qualitative diagnostic plot, a quick visual way to assess slide quality. The second one is a comparative boxplot: each quality control measure is compared to the range obtained for a database of 'good' slides used as reference. You can use your own set of references created using `globalQuality` and `qualRefTable` passed in the arguments "reference" and "scalingTable", or use the reference QC values stored in the datasets `MmReferenceDB` and `MmScalingTable`. All results and quality scores are gathered in a HTML report. For more details about the QC measures and the plots, please refer to the online manual.

### Value

A list of 2 elements:

`mraw` | A marrayRaw object created from the input files.
`quality` | A matrix containing Quality Control measures for all slides.

### Author(s)

Agnes Paquet

### See Also

`globalQuality`, `qualBoxplot`, `scaleRefTable`

### Examples

    datadir <- system.file("gprQCData", package="arrayQuality")
    if (interactive())
    results <- gpQuality(fnames="9Mm137.gpr", path=datadir, organism="Mm")

[Package arrayQuality version 1.66.0 Index]